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Collect.js | flip() function

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The flip() function swaps the key with its corresponding value. In JavaScript, the array is first converted to a collection and then the function is applied to the collection.

Syntax: 

data.flip()

Parameters: This function does not accept any parameter.

Return Value:  Returns by flipping the collection.
 

Below examples illustrate the flip() function in collect.js
Example 1:  Here in this example, we take a collection and then using the flip() function we flip the key and the item in collection.

Javascript




// It is used to import collect.js library
const collect = require('collect.js');
  
const collection = collect({
  name: 'Jhon ',
  number: 000-555,
});
  
console.log(collection.flip());


Output:

Collection { items: { 'Jhon ': 'name', '-555': 'number' } }

Example 2:

Javascript




// It is used to import collect.js library
const collect = require('collect.js');
  
const collection = collect({
    address : ['311-Street', 'US'],
    pin : 2546,
    number : 9898-585-598, 
});
  
const X  = collection.flip();
console.log(X.all());


Output:

{ '2546': 'pin', '8715': 'number', '311-Street,US': 'address' }

Reference: https://collect.js.org/api/count.html


Last Updated : 11 Jun, 2020
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