I want to restrict users from entering number ending with 5
Here is text field.I want users to only enter value like 210,220,230,... and restrict from entering something like 215,225,...
I am looking for suggetions.I don't have much knowledge of javascript.
javascript html forms text
asked Nov 20 at 18:52
Aizaz Haider
11
add a comment |
Here is text field.I want users to only enter value like 210,220,230,... and restrict from entering something like 215,225,...
I am looking for suggetions.I don't have much knowledge of javascript.
javascript html forms text
asked Nov 20 at 18:52
Aizaz Haider
11
1
What have you tried so far? put some code so we can have a better understand
– Luis Cabrera Benito
Nov 20 at 18:53
<input name="cgiftcardq" class="text_field" id="cgiftcardq" size="3" autocomplete="off" type="text "/>
– Aizaz Haider
Nov 20 at 18:54
I am looking for suggetions.I don't have much knowledge of javascript.
– Aizaz Haider
Nov 20 at 18:55
Include all relevant code in your question, not in the comments.
– Tim Lewis
Nov 20 at 18:55
Welcome to StackOverflow! Please review the FAQ on How to ask a good question to make sure you include the relevant information needed to answer your questions.
– Tim
Nov 20 at 19:48
add a comment |
Here is text field.I want users to only enter value like 210,220,230,... and restrict from entering something like 215,225,...
I am looking for suggetions.I don't have much knowledge of javascript.
javascript html forms text
asked Nov 20 at 18:52
Aizaz Haider
11
Here is text field.I want users to only enter value like 210,220,230,... and restrict from entering something like 215,225,...
I am looking for suggetions.I don't have much knowledge of javascript.
javascript html forms text
javascript html forms text
asked Nov 20 at 18:52
Aizaz Haider
11
asked Nov 20 at 18:52
Aizaz Haider
11
edited Nov 20 at 18:58
asked Nov 20 at 18:52
Aizaz Haider
11
asked Nov 20 at 18:52
Aizaz Haider
11
asked Nov 20 at 18:52
Aizaz Haider
11
11
1
What have you tried so far? put some code so we can have a better understand
– Luis Cabrera Benito
Nov 20 at 18:53
<input name="cgiftcardq" class="text_field" id="cgiftcardq" size="3" autocomplete="off" type="text "/>
– Aizaz Haider
Nov 20 at 18:54
I am looking for suggetions.I don't have much knowledge of javascript.
– Aizaz Haider
Nov 20 at 18:55
Include all relevant code in your question, not in the comments.
– Tim Lewis
Nov 20 at 18:55
Welcome to StackOverflow! Please review the FAQ on How to ask a good question to make sure you include the relevant information needed to answer your questions.
– Tim
Nov 20 at 19:48
add a comment |
1
What have you tried so far? put some code so we can have a better understand
– Luis Cabrera Benito
Nov 20 at 18:53
<input name="cgiftcardq" class="text_field" id="cgiftcardq" size="3" autocomplete="off" type="text "/>
– Aizaz Haider
Nov 20 at 18:54
I am looking for suggetions.I don't have much knowledge of javascript.
– Aizaz Haider
Nov 20 at 18:55
Include all relevant code in your question, not in the comments.
– Tim Lewis
Nov 20 at 18:55
Welcome to StackOverflow! Please review the FAQ on How to ask a good question to make sure you include the relevant information needed to answer your questions.
– Tim
Nov 20 at 19:48
1
1
What have you tried so far? put some code so we can have a better understand
– Luis Cabrera Benito
Nov 20 at 18:53
What have you tried so far? put some code so we can have a better understand
– Luis Cabrera Benito
Nov 20 at 18:53
<input name="cgiftcardq" class="text_field" id="cgiftcardq" size="3" autocomplete="off" type="text "/>
– Aizaz Haider
Nov 20 at 18:54
<input name="cgiftcardq" class="text_field" id="cgiftcardq" size="3" autocomplete="off" type="text "/>
– Aizaz Haider
Nov 20 at 18:54
I am looking for suggetions.I don't have much knowledge of javascript.
– Aizaz Haider
Nov 20 at 18:55
I am looking for suggetions.I don't have much knowledge of javascript.
– Aizaz Haider
Nov 20 at 18:55
Include all relevant code in your question, not in the comments.
– Tim Lewis
Nov 20 at 18:55
Include all relevant code in your question, not in the comments.
– Tim Lewis
Nov 20 at 18:55
Welcome to StackOverflow! Please review the FAQ on How to ask a good question to make sure you include the relevant information needed to answer your questions.
– Tim
Nov 20 at 19:48
Welcome to StackOverflow! Please review the FAQ on How to ask a good question to make sure you include the relevant information needed to answer your questions.
– Tim
Nov 20 at 19:48
add a comment |
3 Answers
3
active
oldest
votes
If you just want to prevent strings that end in '5':
document.getElementById("input").onblur = checkEND;
function checkEND() {
let firstValue = event.currentTarget.value;
if(firstValue.endsWith('5')){
warnUser()
}
}
This won't validate that the string is a valid number though.
edited Nov 20 at 19:38
Azmisov
2,28342952
answered Nov 20 at 18:59
user18984
375
add some description what is your solution about
– Alex
Nov 20 at 19:27
add a comment |
function testInput() {
var key = window.event.keyCode;
var x = document.getElementById('textarea').value
var y = document.getElementById('textarea2').value
var z = parseInt(x, 10);
if (z+10 == y) {
document.getElementById('result').innerHTML = "valid";
} else {
document.getElementById('result').innerHTML = "invalid";
}
}<textarea maxlength="3" id="textarea">5</textarea>
<textarea maxlength="3" id="textarea2">15</textarea>
<button onclick="testInput()">Test Input</button>
<div id="result"></div>The first input is your first number, the second is your second number.
See Comments If Your Wondering Why This Doesn't Answer His OG Question
answered Nov 20 at 19:03
BGM52
328
This block all fives. But OP wants number ending with 5
– Smollet777
Nov 20 at 19:14
I updated the code.
– BGM52
Nov 20 at 19:22
Is there a possible way that user can only enter the number incremnt of 10 like 210,220,230 ,.....??
– Aizaz Haider
Nov 20 at 19:36
So do you want the users input to be a list of numbers that all have the same increment?
– BGM52
Nov 20 at 19:38
yes .Incremnt of 10.
– Aizaz Haider
Nov 20 at 19:40
|
show 1 more comment
You can experiment with the setCustomValidity() of input elements (https://developer.mozilla.org/en-US/docs/Web/API/HTMLInputElement) from an onblur, onchange or oninput handler. If you are not satisfied with the value, set an error message, and an empty string otherwise. As long as the error message is set to non-empty, it is displayed and the form refuses to submit:
function check5() {
cgiftcardq.setCustomValidity(cgiftcardq.value.endsWith('5')?"Nope, it can not end with 5":"");
}<form>
<input name="cgiftcardq" class="text_field" id="cgiftcardq" size="3" autocomplete="off" type="text" onblur="check5()">
<input type="submit" value="Send">
</form>(StackOverflow snippets interfere with form submission - probably as part of security -, so successful submission just makes the form disappear)
As setCustomValidity() does not work everywhere (according to the compatibility table, it will not work on non-Andorid mobiles), classic "budget" solution may be mentioned too: you can simply disable the send button as long as you are not satisfied with the input:
function check5() {
if(cgiftcardq.value.endsWith('5')){
send.disabled=true;
message.innerHTML="Nope, it can not end with 5";
} else {
send.disabled=false;
message.innerHTML="OK";
}
}<form>
<input name="cgiftcardq" class="text_field" id="cgiftcardq" size="3" autocomplete="off" type="text" oninput="check5()">
<input id="send" type="submit" value="Send" disabled>
</form>
<div id="message"></div>answered Nov 20 at 19:29
tevemadar
4,2632723
add a comment |
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3 Answers
3
active
oldest
votes
3 Answers
3
active
oldest
votes
active
oldest
votes
active
oldest
votes
If you just want to prevent strings that end in '5':
document.getElementById("input").onblur = checkEND;
function checkEND() {
let firstValue = event.currentTarget.value;
if(firstValue.endsWith('5')){
warnUser()
}
}
This won't validate that the string is a valid number though.
edited Nov 20 at 19:38
Azmisov
2,28342952
answered Nov 20 at 18:59
user18984
375
add some description what is your solution about
– Alex
Nov 20 at 19:27
add a comment |
If you just want to prevent strings that end in '5':
document.getElementById("input").onblur = checkEND;
function checkEND() {
let firstValue = event.currentTarget.value;
if(firstValue.endsWith('5')){
warnUser()
}
}
This won't validate that the string is a valid number though.
edited Nov 20 at 19:38
Azmisov
2,28342952
answered Nov 20 at 18:59
user18984
375
add some description what is your solution about
– Alex
Nov 20 at 19:27
add a comment |
If you just want to prevent strings that end in '5':
document.getElementById("input").onblur = checkEND;
function checkEND() {
let firstValue = event.currentTarget.value;
if(firstValue.endsWith('5')){
warnUser()
}
}
This won't validate that the string is a valid number though.
edited Nov 20 at 19:38
Azmisov
2,28342952
answered Nov 20 at 18:59
user18984
375
If you just want to prevent strings that end in '5':
document.getElementById("input").onblur = checkEND;
function checkEND() {
let firstValue = event.currentTarget.value;
if(firstValue.endsWith('5')){
warnUser()
}
}
This won't validate that the string is a valid number though.
edited Nov 20 at 19:38
Azmisov
2,28342952
answered Nov 20 at 18:59
user18984
375
edited Nov 20 at 19:38
Azmisov
2,28342952
edited Nov 20 at 19:38
Azmisov
2,28342952
edited Nov 20 at 19:38
Azmisov
2,28342952
2,28342952
answered Nov 20 at 18:59
user18984
375
answered Nov 20 at 18:59
user18984
375
answered Nov 20 at 18:59
user18984
375
375
add some description what is your solution about
– Alex
Nov 20 at 19:27
add a comment |
add some description what is your solution about
– Alex
Nov 20 at 19:27
add some description what is your solution about
– Alex
Nov 20 at 19:27
add some description what is your solution about
– Alex
Nov 20 at 19:27
add a comment |
function testInput() {
var key = window.event.keyCode;
var x = document.getElementById('textarea').value
var y = document.getElementById('textarea2').value
var z = parseInt(x, 10);
if (z+10 == y) {
document.getElementById('result').innerHTML = "valid";
} else {
document.getElementById('result').innerHTML = "invalid";
}
}<textarea maxlength="3" id="textarea">5</textarea>
<textarea maxlength="3" id="textarea2">15</textarea>
<button onclick="testInput()">Test Input</button>
<div id="result"></div>The first input is your first number, the second is your second number.
See Comments If Your Wondering Why This Doesn't Answer His OG Question
answered Nov 20 at 19:03
BGM52
328
This block all fives. But OP wants number ending with 5
– Smollet777
Nov 20 at 19:14
I updated the code.
– BGM52
Nov 20 at 19:22
Is there a possible way that user can only enter the number incremnt of 10 like 210,220,230 ,.....??
– Aizaz Haider
Nov 20 at 19:36
So do you want the users input to be a list of numbers that all have the same increment?
– BGM52
Nov 20 at 19:38
yes .Incremnt of 10.
– Aizaz Haider
Nov 20 at 19:40
|
show 1 more comment
function testInput() {
var key = window.event.keyCode;
var x = document.getElementById('textarea').value
var y = document.getElementById('textarea2').value
var z = parseInt(x, 10);
if (z+10 == y) {
document.getElementById('result').innerHTML = "valid";
} else {
document.getElementById('result').innerHTML = "invalid";
}
}<textarea maxlength="3" id="textarea">5</textarea>
<textarea maxlength="3" id="textarea2">15</textarea>
<button onclick="testInput()">Test Input</button>
<div id="result"></div>The first input is your first number, the second is your second number.
See Comments If Your Wondering Why This Doesn't Answer His OG Question
answered Nov 20 at 19:03
BGM52
328
This block all fives. But OP wants number ending with 5
– Smollet777
Nov 20 at 19:14
I updated the code.
– BGM52
Nov 20 at 19:22
Is there a possible way that user can only enter the number incremnt of 10 like 210,220,230 ,.....??
– Aizaz Haider
Nov 20 at 19:36
So do you want the users input to be a list of numbers that all have the same increment?
– BGM52
Nov 20 at 19:38
yes .Incremnt of 10.
– Aizaz Haider
Nov 20 at 19:40
|
show 1 more comment
function testInput() {
var key = window.event.keyCode;
var x = document.getElementById('textarea').value
var y = document.getElementById('textarea2').value
var z = parseInt(x, 10);
if (z+10 == y) {
document.getElementById('result').innerHTML = "valid";
} else {
document.getElementById('result').innerHTML = "invalid";
}
}<textarea maxlength="3" id="textarea">5</textarea>
<textarea maxlength="3" id="textarea2">15</textarea>
<button onclick="testInput()">Test Input</button>
<div id="result"></div>The first input is your first number, the second is your second number.
See Comments If Your Wondering Why This Doesn't Answer His OG Question
answered Nov 20 at 19:03
BGM52
328
function testInput() {
var key = window.event.keyCode;
var x = document.getElementById('textarea').value
var y = document.getElementById('textarea2').value
var z = parseInt(x, 10);
if (z+10 == y) {
document.getElementById('result').innerHTML = "valid";
} else {
document.getElementById('result').innerHTML = "invalid";
}
}<textarea maxlength="3" id="textarea">5</textarea>
<textarea maxlength="3" id="textarea2">15</textarea>
<button onclick="testInput()">Test Input</button>
<div id="result"></div>The first input is your first number, the second is your second number.
See Comments If Your Wondering Why This Doesn't Answer His OG Question
function testInput() {
var key = window.event.keyCode;
var x = document.getElementById('textarea').value
var y = document.getElementById('textarea2').value
var z = parseInt(x, 10);
if (z+10 == y) {
document.getElementById('result').innerHTML = "valid";
} else {
document.getElementById('result').innerHTML = "invalid";
}
}<textarea maxlength="3" id="textarea">5</textarea>
<textarea maxlength="3" id="textarea2">15</textarea>
<button onclick="testInput()">Test Input</button>
<div id="result"></div>function testInput() {
var key = window.event.keyCode;
var x = document.getElementById('textarea').value
var y = document.getElementById('textarea2').value
var z = parseInt(x, 10);
if (z+10 == y) {
document.getElementById('result').innerHTML = "valid";
} else {
document.getElementById('result').innerHTML = "invalid";
}
}<textarea maxlength="3" id="textarea">5</textarea>
<textarea maxlength="3" id="textarea2">15</textarea>
<button onclick="testInput()">Test Input</button>
<div id="result"></div>answered Nov 20 at 19:03
BGM52
328
edited Nov 20 at 19:47
answered Nov 20 at 19:03
BGM52
328
answered Nov 20 at 19:03
BGM52
328
answered Nov 20 at 19:03
BGM52
328
328
This block all fives. But OP wants number ending with 5
– Smollet777
Nov 20 at 19:14
I updated the code.
– BGM52
Nov 20 at 19:22
Is there a possible way that user can only enter the number incremnt of 10 like 210,220,230 ,.....??
– Aizaz Haider
Nov 20 at 19:36
So do you want the users input to be a list of numbers that all have the same increment?
– BGM52
Nov 20 at 19:38
yes .Incremnt of 10.
– Aizaz Haider
Nov 20 at 19:40
|
show 1 more comment
This block all fives. But OP wants number ending with 5
– Smollet777
Nov 20 at 19:14
I updated the code.
– BGM52
Nov 20 at 19:22
Is there a possible way that user can only enter the number incremnt of 10 like 210,220,230 ,.....??
– Aizaz Haider
Nov 20 at 19:36
So do you want the users input to be a list of numbers that all have the same increment?
– BGM52
Nov 20 at 19:38
yes .Incremnt of 10.
– Aizaz Haider
Nov 20 at 19:40
This block all fives. But OP wants number ending with 5
– Smollet777
Nov 20 at 19:14
This block all fives. But OP wants number ending with 5
– Smollet777
Nov 20 at 19:14
I updated the code.
– BGM52
Nov 20 at 19:22
I updated the code.
– BGM52
Nov 20 at 19:22
Is there a possible way that user can only enter the number incremnt of 10 like 210,220,230 ,.....??
– Aizaz Haider
Nov 20 at 19:36
Is there a possible way that user can only enter the number incremnt of 10 like 210,220,230 ,.....??
– Aizaz Haider
Nov 20 at 19:36
So do you want the users input to be a list of numbers that all have the same increment?
– BGM52
Nov 20 at 19:38
So do you want the users input to be a list of numbers that all have the same increment?
– BGM52
Nov 20 at 19:38
yes .Incremnt of 10.
– Aizaz Haider
Nov 20 at 19:40
yes .Incremnt of 10.
– Aizaz Haider
Nov 20 at 19:40
|
show 1 more comment
You can experiment with the setCustomValidity() of input elements (https://developer.mozilla.org/en-US/docs/Web/API/HTMLInputElement) from an onblur, onchange or oninput handler. If you are not satisfied with the value, set an error message, and an empty string otherwise. As long as the error message is set to non-empty, it is displayed and the form refuses to submit:
function check5() {
cgiftcardq.setCustomValidity(cgiftcardq.value.endsWith('5')?"Nope, it can not end with 5":"");
}<form>
<input name="cgiftcardq" class="text_field" id="cgiftcardq" size="3" autocomplete="off" type="text" onblur="check5()">
<input type="submit" value="Send">
</form>(StackOverflow snippets interfere with form submission - probably as part of security -, so successful submission just makes the form disappear)
As setCustomValidity() does not work everywhere (according to the compatibility table, it will not work on non-Andorid mobiles), classic "budget" solution may be mentioned too: you can simply disable the send button as long as you are not satisfied with the input:
function check5() {
if(cgiftcardq.value.endsWith('5')){
send.disabled=true;
message.innerHTML="Nope, it can not end with 5";
} else {
send.disabled=false;
message.innerHTML="OK";
}
}<form>
<input name="cgiftcardq" class="text_field" id="cgiftcardq" size="3" autocomplete="off" type="text" oninput="check5()">
<input id="send" type="submit" value="Send" disabled>
</form>
<div id="message"></div>answered Nov 20 at 19:29
tevemadar
4,2632723
add a comment |
You can experiment with the setCustomValidity() of input elements (https://developer.mozilla.org/en-US/docs/Web/API/HTMLInputElement) from an onblur, onchange or oninput handler. If you are not satisfied with the value, set an error message, and an empty string otherwise. As long as the error message is set to non-empty, it is displayed and the form refuses to submit:
function check5() {
cgiftcardq.setCustomValidity(cgiftcardq.value.endsWith('5')?"Nope, it can not end with 5":"");
}<form>
<input name="cgiftcardq" class="text_field" id="cgiftcardq" size="3" autocomplete="off" type="text" onblur="check5()">
<input type="submit" value="Send">
</form>(StackOverflow snippets interfere with form submission - probably as part of security -, so successful submission just makes the form disappear)
As setCustomValidity() does not work everywhere (according to the compatibility table, it will not work on non-Andorid mobiles), classic "budget" solution may be mentioned too: you can simply disable the send button as long as you are not satisfied with the input:
function check5() {
if(cgiftcardq.value.endsWith('5')){
send.disabled=true;
message.innerHTML="Nope, it can not end with 5";
} else {
send.disabled=false;
message.innerHTML="OK";
}
}<form>
<input name="cgiftcardq" class="text_field" id="cgiftcardq" size="3" autocomplete="off" type="text" oninput="check5()">
<input id="send" type="submit" value="Send" disabled>
</form>
<div id="message"></div>answered Nov 20 at 19:29
tevemadar
4,2632723
add a comment |
You can experiment with the setCustomValidity() of input elements (https://developer.mozilla.org/en-US/docs/Web/API/HTMLInputElement) from an onblur, onchange or oninput handler. If you are not satisfied with the value, set an error message, and an empty string otherwise. As long as the error message is set to non-empty, it is displayed and the form refuses to submit:
function check5() {
cgiftcardq.setCustomValidity(cgiftcardq.value.endsWith('5')?"Nope, it can not end with 5":"");
}<form>
<input name="cgiftcardq" class="text_field" id="cgiftcardq" size="3" autocomplete="off" type="text" onblur="check5()">
<input type="submit" value="Send">
</form>(StackOverflow snippets interfere with form submission - probably as part of security -, so successful submission just makes the form disappear)
As setCustomValidity() does not work everywhere (according to the compatibility table, it will not work on non-Andorid mobiles), classic "budget" solution may be mentioned too: you can simply disable the send button as long as you are not satisfied with the input:
function check5() {
if(cgiftcardq.value.endsWith('5')){
send.disabled=true;
message.innerHTML="Nope, it can not end with 5";
} else {
send.disabled=false;
message.innerHTML="OK";
}
}<form>
<input name="cgiftcardq" class="text_field" id="cgiftcardq" size="3" autocomplete="off" type="text" oninput="check5()">
<input id="send" type="submit" value="Send" disabled>
</form>
<div id="message"></div>answered Nov 20 at 19:29
tevemadar
4,2632723
You can experiment with the setCustomValidity() of input elements (https://developer.mozilla.org/en-US/docs/Web/API/HTMLInputElement) from an onblur, onchange or oninput handler. If you are not satisfied with the value, set an error message, and an empty string otherwise. As long as the error message is set to non-empty, it is displayed and the form refuses to submit:
function check5() {
cgiftcardq.setCustomValidity(cgiftcardq.value.endsWith('5')?"Nope, it can not end with 5":"");
}<form>
<input name="cgiftcardq" class="text_field" id="cgiftcardq" size="3" autocomplete="off" type="text" onblur="check5()">
<input type="submit" value="Send">
</form>(StackOverflow snippets interfere with form submission - probably as part of security -, so successful submission just makes the form disappear)
As setCustomValidity() does not work everywhere (according to the compatibility table, it will not work on non-Andorid mobiles), classic "budget" solution may be mentioned too: you can simply disable the send button as long as you are not satisfied with the input:
function check5() {
if(cgiftcardq.value.endsWith('5')){
send.disabled=true;
message.innerHTML="Nope, it can not end with 5";
} else {
send.disabled=false;
message.innerHTML="OK";
}
}<form>
<input name="cgiftcardq" class="text_field" id="cgiftcardq" size="3" autocomplete="off" type="text" oninput="check5()">
<input id="send" type="submit" value="Send" disabled>
</form>
<div id="message"></div>function check5() {
cgiftcardq.setCustomValidity(cgiftcardq.value.endsWith('5')?"Nope, it can not end with 5":"");
}<form>
<input name="cgiftcardq" class="text_field" id="cgiftcardq" size="3" autocomplete="off" type="text" onblur="check5()">
<input type="submit" value="Send">
</form>function check5() {
cgiftcardq.setCustomValidity(cgiftcardq.value.endsWith('5')?"Nope, it can not end with 5":"");
}<form>
<input name="cgiftcardq" class="text_field" id="cgiftcardq" size="3" autocomplete="off" type="text" onblur="check5()">
<input type="submit" value="Send">
</form>function check5() {
if(cgiftcardq.value.endsWith('5')){
send.disabled=true;
message.innerHTML="Nope, it can not end with 5";
} else {
send.disabled=false;
message.innerHTML="OK";
}
}<form>
<input name="cgiftcardq" class="text_field" id="cgiftcardq" size="3" autocomplete="off" type="text" oninput="check5()">
<input id="send" type="submit" value="Send" disabled>
</form>
<div id="message"></div>function check5() {
if(cgiftcardq.value.endsWith('5')){
send.disabled=true;
message.innerHTML="Nope, it can not end with 5";
} else {
send.disabled=false;
message.innerHTML="OK";
}
}<form>
<input name="cgiftcardq" class="text_field" id="cgiftcardq" size="3" autocomplete="off" type="text" oninput="check5()">
<input id="send" type="submit" value="Send" disabled>
</form>
<div id="message"></div>answered Nov 20 at 19:29
tevemadar
4,2632723
edited Nov 22 at 11:53
answered Nov 20 at 19:29
tevemadar
4,2632723
answered Nov 20 at 19:29
tevemadar
4,2632723
answered Nov 20 at 19:29
tevemadar
4,2632723
4,2632723
add a comment |
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What have you tried so far? put some code so we can have a better understand
– Luis Cabrera Benito
Nov 20 at 18:53
<input name="cgiftcardq" class="text_field" id="cgiftcardq" size="3" autocomplete="off" type="text "/>
– Aizaz Haider
Nov 20 at 18:54
I am looking for suggetions.I don't have much knowledge of javascript.
– Aizaz Haider
Nov 20 at 18:55
Include all relevant code in your question, not in the comments.
– Tim Lewis
Nov 20 at 18:55
Welcome to StackOverflow! Please review the FAQ on How to ask a good question to make sure you include the relevant information needed to answer your questions.
– Tim
Nov 20 at 19:48