Hi I have json return object like this
color_selected = [
{ id: 4},
{ id: 3}
];
how do I convert it to
color_selected = [4,3]
thank you for your any help and suggestions
Add a comment
|
4 Answers
You could iterate through it like this:
var newArray = [];
for(var i = 0; i < color_selected.length; i++) {
newArray.push(color_selected[i].id);
}
Comments
you can use javascript map function for that
var newArray = color_selected.map(o=> o.id)
var color_selected = [
{ id: 4},
{ id: 3}
];
var newArray = color_selected.map(o=> o.id)
console.log(newArray)3 Comments
sanu
working fine var newArray = []; for(var i = 0; i < color_selected.length; i++) { newArray.push(color_selected[i].id); } this is also fine
Sachila Ranawaka
@sanu javascript
map is functional programming method. it's better if you can follow array method
Ben
This is certainly a good solution, but it's worth noting that lambda expressions require ES6
color_selected = [
{ id: 4},
{ id: 3}
];
You can use lodash
// in 3.10.1
_.pluck(color_selected, 'id'); // → [4, 3]
_.map(color_selected, 'id'); // → [4, 3]
// in 4.0.0
_.map(color_selected, 'id'); // → [4, 3]
1 Comment
Ben
This is also a good solution, but is it worth bringing another library into your solution just to do this?
Use Array.map() method with ES6 Arrow operator.
var color_selected = [
{ id: 4},
{ id: 3}
];
color_selected = color_selected.map(item => {return item.id });
console.log(color_selected);