Parsing Content of Array

Question

I have:

array1 = [{'x': 1}, {'x': 2}, {'x': 3}, {'x': 5}]

And I want to parse the number values after the : into this array like:

[1,2,3,5]

How would I go about doing this?

I removed the Angular tag, it has nothing to do with Angular, unless you wonder how to do the computation in a template or something similar — Phil, Jun 21 '19 at 15:35

score 1 · Accepted Answer · answered Jun 21 '19 at 15:32

1

Use the array.map function to create a new array.

array1 = [{'x': 1}, {'x': 2}, {'x': 3}, {'x': 5}] 
array2 = array1.map(o=>o.x);
console.log(array2);

answered Jun 21 '19 at 15:32

I wrestled a bear once.

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score 1 · Answer 2 · answered Jun 21 '19 at 15:32

1

You can use map for your requirement

let result = array1.map(c=>c.x);

array1 = [{'x': 1}, {'x': 2}, {'x': 3}, {'x': 5}] 

let result = array1.map(c=>c.x);

console.log(result);

answered Jun 21 '19 at 15:32

Hien Nguyen

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But how does it work? I get array.map loops through and takes value=> and does something to it. what does the object.x part do? – my_mistakes Jun 21 '19 at 15:47
1

@my_mistakes the object.x part filters each value of 'x' – DuckyBluff Jun 21 '19 at 16:08

score 0 · Answer 3 · edited Jun 21 '19 at 15:36

0

array1 = [{'x': 1}, {'x': 2}, {'x': 3}, {'x': 5}] 

const values = array1.map(object => object.x)

console.log(values)

edited Jun 21 '19 at 15:36

p.s.w.g

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answered Jun 21 '19 at 15:33

Gene Rally

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Consider adding some commentary to your post to assist readers on what you are attempting to present with your code. – Milo Jun 21 '19 at 18:27

Mohideen bin Mohammed · Answer 4 · 2019-06-21T15:35:29.667

0

using Plain JS,

array1 = [{'x': 1}, {'x': 2}, {'x': 3}, {'x': 5}] 
out = []
for (i in array1) {
  out.push(array1[i]['x'])
}
console.log(out)
// using array map
op = array1.map(i => i.x)
console.log(op)

edited Jun 21 '19 at 15:35

answered Jun 21 '19 at 15:34

Mohideen bin Mohammed

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Parsing Content of Array

4 Answers4