The wrap() method in collect.js is used to wrap a particular set of values in a collection.
Installation:
- In NodeJs:
npm install collect.js
- CDN for collect.js
<script src="https://cdnjs.com/libraries/collect.js"></script>
Syntax:
wrap( object );
Parameters: This method accepts an array or object.
Return Value: It returns the object.
Example 1:
// Importing the collect.js module.
const collect = require('collect.js');
let obj1 = { "a": 1, "b": 12, "c": 3 };
// This will make a empty collection
let collection = collect();
// It will not wrap
collection.wrap(obj1);
console.log(collection.all());
// Using wrap function to wrap values
// to a collection
collection = collect().wrap(obj1);
console.log(collection.all());
Output:
Example 2:
// Importing the collect.js module.
const collect = require('collect.js');
let obj1 = { "a": 1, "b": 12, "c": 3 };
let obj2 = { "aa": 1, "bb": 12, "cc": 3 };
let obj3 = { "aaa": 1, "bbb": 12, "ccc": 3 };
// Using wrap() method to wrap values
// to a collection
collection = collect().wrap(obj1)
.wrap(obj2)
.wrap(obj3);
// Note: only the obj3 is wrapped and
// obj1 and obj2 are replaced
console.log(collection.all());
collection = collect().wrap(obj1)
.wrap(obj2)
// Note: only the obj2 is wrapped
// and obj1 is replaced.
console.log(collection.all());
Reference: 