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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