Learning Javascript - Is this a messy implementation of a Javascript Slider?
I've been learning JS for a few months now and I've just finished creating a small image slider for a website. The sliders functionality is as follows:
- Continuously cycle through images and loop back to the start
- Allow the user to click through to a certain section
- When clicked, the cycle timer must reset and the loop must continue from that point
- cycle through a corresponding DOM element (in this case it's a testimonial quote)
I'm mainly looking for pointers on how to make my code more efficient or if I've used bad practice. Any help would be appreciated.
var container = document.getElementById('slide-container');
var button = document.getElementById('slider-buttons');
var quote = document.getElementById('quote-container');
var interval = 0;
sliderMove = function(position){
// Move container to next image
container.style.left = -(350 * position) + 'px';
// Remove active classes from all children
for (var i = 0; i < quote.children.length; i++) {
quote.children[i].classList.remove("quote-active");
button.children[i].classList.remove('active');
};
// Add active classes to specified children
quote.children[position].classList.add("quote-active");
button.children[position].classList.add('active');
// Increase global interval variable by 1
interval++;
// Set interval back to 0 if it exceeds the amount of quotes
if (interval >= quote.children.length) {
interval = 0;
};
};
// Add event listener to buttons
button.addEventListener('click', function(event){
clearInterval(timer); // Resets timer when user clicks on an image
autoMove(); // Restarts timer
if (event.target.id > -1) { // Ensures the target is valid
interval = event.target.id;
sliderMove(interval);
};
});
// Auto Rotate
function autoMove(index) {
timer = setInterval(function(){
index = interval;
sliderMove(index);
},5000);
}
autoMove(0);
sliderMove(0);
javascript
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add a comment |
I've been learning JS for a few months now and I've just finished creating a small image slider for a website. The sliders functionality is as follows:
- Continuously cycle through images and loop back to the start
- Allow the user to click through to a certain section
- When clicked, the cycle timer must reset and the loop must continue from that point
- cycle through a corresponding DOM element (in this case it's a testimonial quote)
I'm mainly looking for pointers on how to make my code more efficient or if I've used bad practice. Any help would be appreciated.
var container = document.getElementById('slide-container');
var button = document.getElementById('slider-buttons');
var quote = document.getElementById('quote-container');
var interval = 0;
sliderMove = function(position){
// Move container to next image
container.style.left = -(350 * position) + 'px';
// Remove active classes from all children
for (var i = 0; i < quote.children.length; i++) {
quote.children[i].classList.remove("quote-active");
button.children[i].classList.remove('active');
};
// Add active classes to specified children
quote.children[position].classList.add("quote-active");
button.children[position].classList.add('active');
// Increase global interval variable by 1
interval++;
// Set interval back to 0 if it exceeds the amount of quotes
if (interval >= quote.children.length) {
interval = 0;
};
};
// Add event listener to buttons
button.addEventListener('click', function(event){
clearInterval(timer); // Resets timer when user clicks on an image
autoMove(); // Restarts timer
if (event.target.id > -1) { // Ensures the target is valid
interval = event.target.id;
sliderMove(interval);
};
});
// Auto Rotate
function autoMove(index) {
timer = setInterval(function(){
index = interval;
sliderMove(index);
},5000);
}
autoMove(0);
sliderMove(0);
javascript
New contributor
add a comment |
I've been learning JS for a few months now and I've just finished creating a small image slider for a website. The sliders functionality is as follows:
- Continuously cycle through images and loop back to the start
- Allow the user to click through to a certain section
- When clicked, the cycle timer must reset and the loop must continue from that point
- cycle through a corresponding DOM element (in this case it's a testimonial quote)
I'm mainly looking for pointers on how to make my code more efficient or if I've used bad practice. Any help would be appreciated.
var container = document.getElementById('slide-container');
var button = document.getElementById('slider-buttons');
var quote = document.getElementById('quote-container');
var interval = 0;
sliderMove = function(position){
// Move container to next image
container.style.left = -(350 * position) + 'px';
// Remove active classes from all children
for (var i = 0; i < quote.children.length; i++) {
quote.children[i].classList.remove("quote-active");
button.children[i].classList.remove('active');
};
// Add active classes to specified children
quote.children[position].classList.add("quote-active");
button.children[position].classList.add('active');
// Increase global interval variable by 1
interval++;
// Set interval back to 0 if it exceeds the amount of quotes
if (interval >= quote.children.length) {
interval = 0;
};
};
// Add event listener to buttons
button.addEventListener('click', function(event){
clearInterval(timer); // Resets timer when user clicks on an image
autoMove(); // Restarts timer
if (event.target.id > -1) { // Ensures the target is valid
interval = event.target.id;
sliderMove(interval);
};
});
// Auto Rotate
function autoMove(index) {
timer = setInterval(function(){
index = interval;
sliderMove(index);
},5000);
}
autoMove(0);
sliderMove(0);
javascript
New contributor
I've been learning JS for a few months now and I've just finished creating a small image slider for a website. The sliders functionality is as follows:
- Continuously cycle through images and loop back to the start
- Allow the user to click through to a certain section
- When clicked, the cycle timer must reset and the loop must continue from that point
- cycle through a corresponding DOM element (in this case it's a testimonial quote)
I'm mainly looking for pointers on how to make my code more efficient or if I've used bad practice. Any help would be appreciated.
var container = document.getElementById('slide-container');
var button = document.getElementById('slider-buttons');
var quote = document.getElementById('quote-container');
var interval = 0;
sliderMove = function(position){
// Move container to next image
container.style.left = -(350 * position) + 'px';
// Remove active classes from all children
for (var i = 0; i < quote.children.length; i++) {
quote.children[i].classList.remove("quote-active");
button.children[i].classList.remove('active');
};
// Add active classes to specified children
quote.children[position].classList.add("quote-active");
button.children[position].classList.add('active');
// Increase global interval variable by 1
interval++;
// Set interval back to 0 if it exceeds the amount of quotes
if (interval >= quote.children.length) {
interval = 0;
};
};
// Add event listener to buttons
button.addEventListener('click', function(event){
clearInterval(timer); // Resets timer when user clicks on an image
autoMove(); // Restarts timer
if (event.target.id > -1) { // Ensures the target is valid
interval = event.target.id;
sliderMove(interval);
};
});
// Auto Rotate
function autoMove(index) {
timer = setInterval(function(){
index = interval;
sliderMove(index);
},5000);
}
autoMove(0);
sliderMove(0);
javascript
javascript
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asked 1 min ago
Lachlan McBride
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Lachlan McBride is a new contributor. Be nice, and check out our Code of Conduct.
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