Collect.js whereNotIn() Method

0 1 1 minute read

The whereNotIn() method in collect.js is used to filter the elements from the given collection on the basis of key and value. If particular set of key-value is found then it is filtered out.

Installation:

In NodeJs:
```
npm install collect.js
```

CDN for collect.js

<script src="https://cdnjs.com/libraries/collect.js"></script>

Syntax:

whereNotIn(key, array_value);

Parameters:

key: The key whose value is to be removed.
array_value: The array of values that key is to be removed.

Return Value: It returns the object.

Example 1:

Javascript

// Importing the collect.js module. 
const collect = require('collect.js'); 
let obj1 = [ 
    { "a": 1 }, 
    { "a": 2 }, 
    { "a": 3 }, 
    { "a": 4 }, 
    { "b": 5 } 
] 
  
// Making a collection 
let collection = collect(obj1); 
  
// Using whereNotIn() method to return 
// a collection not having value 2, 4 
// For key "a" 
let collectionFilter = collection 
            .whereNotIn("a", [2, 4]); 
  
console.log("Original collection is: ", 
            collection.all()) 
              
console.log("Filtered collection is: ",  
            collectionFilter.all()); 

Output:

Example 2:

Javascript

// Importing the collect.js module. 
const collect = require('collect.js'); 
  
let obj1 = [ 
    { "b": 1 }, 
    { "c": 2 }, 
    { "b": 3 }, 
    { "b": 4 }, 
    { "b": 5 }, 
    { "c": 11 }, 
    { "c": 12 }, 
] 
  
// Making a collection 
let collection = collect(obj1); 
  
// Using whereNotIn() method to return  
// a collection not having value 1, 2, 4 
// For key "b" 
let collectionFilter =  
    collection.whereNotIn("b", [1, 2, 4]); 
  
collectionFilter =  
    collection.whereNotIn("c", [11]); 
  
console.log("Original collection is: ",  
    collection.all()); 
  
console.log("The output will not contain "
        + "value of 1, 2, 4 for key \"b\""
        + " and value of 11 for key \"c\""); 
  
console.log("Filtered collection is: ",  
        collectionFilter.all()); 

Output:

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

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