javascript: loop through object array and pushing elements into one array

debugcn 投稿 Dev

Dave

I am trying to loop through an object array (data.list) and pull out an element (required_fields.display_value) and push them into another array and concatenate.

I've written the following:

c.data.required_fields = [];
            for(var i=0; i<c.data.list.length; i++) {
                c.data.required_fields.push(
                    c.data.list[i].required_fields.display_value.split(',')             
                );
            }

which returns this:

What do I have to add to my code above so that required_fields is a single array? Thanks!

Devin Fields

c.data.required_fields = [];
for(var i=0; i<c.data.list.length; i++) {
    c.data.required_fields = c.data.required_fields.concat(
        c.data.list[i].required_fields.display_value.split(',')             
    );
}

This should do the trick. Since every call to .split will return an array, you need to concat the contents of that array into the required_fields array. Concat returns a branch new array, however, hence the "c.data.required_fields = c.data.required_fields.concat..." assignment.

**This is a very simple fix. You could of course do something more readable with reduce, but I believe another answer has that covered.

この記事はインターネットから収集されたものであり、転載の際にはソースを示してください。

侵害の場合は、連絡してください[email protected]

編集2021-06-1

コメントを追加

サインイン

分類Dev

Related 関連記事

記事

javascript: loop through object array and pushing elements into one array

javascript: loop through object array and pushing elements into one array

Create a javascript object and then fill an array through a for loop

Pushing an Object to the array

Pushing element into array inside for loop

Code to loop through an array in one line in Ruby

Pushing arrays of one variable in one array

Putting elements in an array from for loop in Javascript

How can I iterate through an object array and add matching values while pushing new values

Can I loop through an array to change and elements attributes on hover

combine multiple array elements into single object in javascript

How to count certain elements in an object array in JavaScript?

Infinite loop when pushing into array using UseState()?

loop through implicit array

Pushing items into an array if dates matches - JavaScript/TypeScript

Pushing to a Javascript array that has a __proto__

Array of Array into Array of object in javascript

How to loop through object - JavaScript

React: Loop through array of strings

Struggling to loop through an array of objects

Array validation through a while loop

Perl: pushing elements into array replaces existing value with new variable value

javascript change elements in array

Sort array elements on JavaScript

how to use snap.svg to loop through svg elements and create array of each ones path attribute

Why does Ember complain when pushing an object onto an Ember array?

Pushing accelerometer data into an array

ng-repeat angular adding two elements to a div as opposed to one when iterating through array

Access JSON Array through Javascript

Loop through array: CCAction for every element, but only one callback after actions are finished

Object in array is not updating in JavaScript

Pushing to a Javascript array that has a proto