Collect.js whereNotIn() Method

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