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Parsing object to array using underscore js or lodash


Parsing object to array using underscore js or lodash

By : David Fennessy
Date : November 29 2020, 09:01 AM
it fixes the issue Use Object.keys with forEach and add object in the array.
Get all the keys of the object Iterate over the keys array using forEach Push first element of the subarray in the result array.
code :
var arr = [];
Object.keys(obj).forEach(function(e) {
    // Get the key and assign it to `connector`
    obj[e][0].connector = e;
    arr.push(obj[e][0]);
});
var obj = {
  '2c13790be20a06a35da629c71e548afexing': [{
    connector: '',
    displayName: 'John',
    loginName: '',
    userImage: '2.jpg'
  }],
  '493353a4c5f0aa71508d4055483ff979linkedinpage': [{
    connector: '',
    displayName: 'Mak',
    loginName: '',
    userImage: '1.jpg'
  }]
};

var arr = [];
Object.keys(obj).forEach(function(e) {
  obj[e][0].connector = e;
  arr.push(obj[e][0]);
});

console.log(arr);
document.getElementById('output').innerHTML = JSON.stringify(arr, 0, 4);
<pre id="output"></pre>
var arr = [];
_.forEach(obj, function(e, k) {
    e[0].connector = k;
    arr.push(e[0]);
});
var obj = {
  '2c13790be20a06a35da629c71e548afexing': [{
    connector: '',
    displayName: 'John',
    loginName: '',
    userImage: '2.jpg'
  }],
  '493353a4c5f0aa71508d4055483ff979linkedinpage': [{
    connector: '',
    displayName: 'Mak',
    loginName: '',
    userImage: '1.jpg'
  }]
};

var arr = [];

_.forEach(obj, function(e, k) {
  e[0].connector = k;
  arr.push(e[0]);
});

console.log(arr);
document.getElementById('output').innerHTML = JSON.stringify(arr, 0, 4);
<script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/3.10.1/lodash.js"></script>
<pre id="output"></pre>


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Get object properties and values from array using lodash/underscore.js

Get object properties and values from array using lodash/underscore.js


By : user2985625
Date : March 29 2020, 07:55 AM
This might help you Using plain JS to show the logic: you need to filter out the elements that don't have the key, then map the new collection to another form:
code :
array.filter( function(item){
    return 'data-model_id' in item;
  }).map( function( item ){
    return { 'data-model_id' : item['data-model_id'] }
  });
Convert array to object based on set of keys using lodash or underscore js

Convert array to object based on set of keys using lodash or underscore js


By : JAG
Date : March 29 2020, 07:55 AM
it helps some times I have a requirement to convert an array to object based on values in another array using lodash or underscore js. , Try this,
code :
var result = {};

connections.forEach(function (key) {
    contents.forEach(function (el) {
        if (el[key] && !result[key]) {
            result[key] = el;
        }
    });
});

console.log(result);
Lodash/underscore: Convert array of objects to single object

Lodash/underscore: Convert array of objects to single object


By : reciopa
Date : March 29 2020, 07:55 AM
Hope this helps I have an array of objects that looks like so: , There may be a built-in way that I can’t find, but:
code :
var result = _.zipObject(
    _.pluck(A, 'key'),
    _.pluck(A, 'val')
);
Angular get object from array of objects with lodash or underscore

Angular get object from array of objects with lodash or underscore


By : Fatih Alkan
Date : March 29 2020, 07:55 AM
will be helpful for those in need I want to grab property a: from Array of objects with lodash or underscore , With Lodash you can use:
code :
 var newarr = _.map($scope.testarr, function(obj) {
            return _.omit(obj, 'b');
        });
 newarr  = [{
                a: '1'
            }, {
                a: '1'
            }, {
                a: '1'
            }, {
                a: '1'
            }, {
                a: '1'
            }];
Javascript/underscore/lodash : Comparing object in array of objects and remove the matched object

Javascript/underscore/lodash : Comparing object in array of objects and remove the matched object


By : susah nyenie
Date : March 29 2020, 07:55 AM
To fix the issue you can do I have found an easy way to solve your problem. Convert objectToCompare to array and using _.differenceWith() to compare.
Check my code below, please.
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