Typescript: Accessing the properties of a key value pair in typescript
I have a key value pair object in typescript.
const data = {INTERNAL:[372042],EXTERNAL:[332244]};
The above is not a map, but I want to iterate over its keys and use it in a switch case pattern.
mapData(data: { key: string; value: Array<number> }):void{
switch(data[key]) {
case 'INTERNAL':
console.log('this is Internal data' =+data[value];
break;
case 'EXTERNAL':
console.log('this is External data' =+data[value];
break;
default:
}
}
data[key] or data[value] is throwing an error saying key/value is not existing'.
What is the correct way to access the data.
typescript switch-statement key-value
asked Nov 20 at 20:23
prabhat gundepalli
144114
add a comment |
I have a key value pair object in typescript.
const data = {INTERNAL:[372042],EXTERNAL:[332244]};
The above is not a map, but I want to iterate over its keys and use it in a switch case pattern.
mapData(data: { key: string; value: Array<number> }):void{
switch(data[key]) {
case 'INTERNAL':
console.log('this is Internal data' =+data[value];
break;
case 'EXTERNAL':
console.log('this is External data' =+data[value];
break;
default:
}
}
data[key] or data[value] is throwing an error saying key/value is not existing'.
What is the correct way to access the data.
typescript switch-statement key-value
asked Nov 20 at 20:23
prabhat gundepalli
144114
You've tagged this question withfor-loopbut there is notforloop in the code. Please edit your question to include a Minimal, Complete, and Verifiable example that demonstrates the issue you are seeing.
– Heretic Monkey
Nov 20 at 20:36
done. thanks....
– prabhat gundepalli
Nov 20 at 20:37
Still not reproducible, since you don't show how you're callingmapData. Note that if you're callingmapData(data), it should show a compile error, sinceconst data = {...}is not in the correct format for thedataargument tomapData. I think you wantmapData(data: { [key: string]: Array<number> }): void {...
– Heretic Monkey
Nov 20 at 20:40
add a comment |
I have a key value pair object in typescript.
const data = {INTERNAL:[372042],EXTERNAL:[332244]};
The above is not a map, but I want to iterate over its keys and use it in a switch case pattern.
mapData(data: { key: string; value: Array<number> }):void{
switch(data[key]) {
case 'INTERNAL':
console.log('this is Internal data' =+data[value];
break;
case 'EXTERNAL':
console.log('this is External data' =+data[value];
break;
default:
}
}
data[key] or data[value] is throwing an error saying key/value is not existing'.
What is the correct way to access the data.
typescript switch-statement key-value
asked Nov 20 at 20:23
prabhat gundepalli
144114
I have a key value pair object in typescript.
const data = {INTERNAL:[372042],EXTERNAL:[332244]};
The above is not a map, but I want to iterate over its keys and use it in a switch case pattern.
mapData(data: { key: string; value: Array<number> }):void{
switch(data[key]) {
case 'INTERNAL':
console.log('this is Internal data' =+data[value];
break;
case 'EXTERNAL':
console.log('this is External data' =+data[value];
break;
default:
}
}
data[key] or data[value] is throwing an error saying key/value is not existing'.
What is the correct way to access the data.
typescript switch-statement key-value
typescript switch-statement key-value
asked Nov 20 at 20:23
prabhat gundepalli
144114
asked Nov 20 at 20:23
prabhat gundepalli
144114
edited Nov 20 at 20:36
asked Nov 20 at 20:23
prabhat gundepalli
144114
asked Nov 20 at 20:23
prabhat gundepalli
144114
asked Nov 20 at 20:23
prabhat gundepalli
144114
144114
You've tagged this question withfor-loopbut there is notforloop in the code. Please edit your question to include a Minimal, Complete, and Verifiable example that demonstrates the issue you are seeing.
– Heretic Monkey
Nov 20 at 20:36
done. thanks....
– prabhat gundepalli
Nov 20 at 20:37
Still not reproducible, since you don't show how you're callingmapData. Note that if you're callingmapData(data), it should show a compile error, sinceconst data = {...}is not in the correct format for thedataargument tomapData. I think you wantmapData(data: { [key: string]: Array<number> }): void {...
– Heretic Monkey
Nov 20 at 20:40
add a comment |
You've tagged this question withfor-loopbut there is notforloop in the code. Please edit your question to include a Minimal, Complete, and Verifiable example that demonstrates the issue you are seeing.
– Heretic Monkey
Nov 20 at 20:36
done. thanks....
– prabhat gundepalli
Nov 20 at 20:37
Still not reproducible, since you don't show how you're callingmapData. Note that if you're callingmapData(data), it should show a compile error, sinceconst data = {...}is not in the correct format for thedataargument tomapData. I think you wantmapData(data: { [key: string]: Array<number> }): void {...
– Heretic Monkey
Nov 20 at 20:40
You've tagged this question with
for-loop but there is not for loop in the code. Please edit your question to include a Minimal, Complete, and Verifiable example that demonstrates the issue you are seeing.– Heretic Monkey
Nov 20 at 20:36
You've tagged this question with
for-loop but there is not for loop in the code. Please edit your question to include a Minimal, Complete, and Verifiable example that demonstrates the issue you are seeing.– Heretic Monkey
Nov 20 at 20:36
done. thanks....
– prabhat gundepalli
Nov 20 at 20:37
done. thanks....
– prabhat gundepalli
Nov 20 at 20:37
Still not reproducible, since you don't show how you're calling
mapData. Note that if you're calling mapData(data), it should show a compile error, since const data = {...} is not in the correct format for the data argument to mapData. I think you want mapData(data: { [key: string]: Array<number> }): void {...– Heretic Monkey
Nov 20 at 20:40
Still not reproducible, since you don't show how you're calling
mapData. Note that if you're calling mapData(data), it should show a compile error, since const data = {...} is not in the correct format for the data argument to mapData. I think you want mapData(data: { [key: string]: Array<number> }): void {...– Heretic Monkey
Nov 20 at 20:40
add a comment |
1 Answer
1
active
oldest
votes
There is no iteration in the code your provide. Is this what you want to achieve ?
for (key in data) {
mapData({key: key, value: data[key]}); }
answered Nov 20 at 20:35
Rolvernew
1817
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
There is no iteration in the code your provide. Is this what you want to achieve ?
for (key in data) {
mapData({key: key, value: data[key]}); }
answered Nov 20 at 20:35
Rolvernew
1817
add a comment |
There is no iteration in the code your provide. Is this what you want to achieve ?
for (key in data) {
mapData({key: key, value: data[key]}); }
answered Nov 20 at 20:35
Rolvernew
1817
add a comment |
There is no iteration in the code your provide. Is this what you want to achieve ?
for (key in data) {
mapData({key: key, value: data[key]}); }
answered Nov 20 at 20:35
Rolvernew
1817
There is no iteration in the code your provide. Is this what you want to achieve ?
for (key in data) {
mapData({key: key, value: data[key]}); }
answered Nov 20 at 20:35
Rolvernew
1817
answered Nov 20 at 20:35
Rolvernew
1817
answered Nov 20 at 20:35
Rolvernew
1817
answered Nov 20 at 20:35
Rolvernew
1817
1817
add a comment |
add a comment |
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You've tagged this question with
for-loopbut there is notforloop in the code. Please edit your question to include a Minimal, Complete, and Verifiable example that demonstrates the issue you are seeing.– Heretic Monkey
Nov 20 at 20:36
done. thanks....
– prabhat gundepalli
Nov 20 at 20:37
Still not reproducible, since you don't show how you're calling
mapData. Note that if you're callingmapData(data), it should show a compile error, sinceconst data = {...}is not in the correct format for thedataargument tomapData. I think you wantmapData(data: { [key: string]: Array<number> }): void {...– Heretic Monkey
Nov 20 at 20:40