JavaScript: Filter out the specified values from a specified array
JavaScript fundamental (ES6 Syntax): Exercise-8 with Solution
Write a JavaScript program to filter out the specified values from a specified array. Return the original array without filtered values.
- Use Array.prototype.filter() and Array.prototype.includes() to pull out the values that are not needed.
- Set Array.prototype.length to mutate the passed in an array by resetting its length to 0.
- Use Array.prototype.push() to re-populate it with only the pulled values.
Sample Solution:
JavaScript Code:
//#Source https://bit.ly/2neWfJ2
const pull = (arr, ...args) => {
let argState = Array.isArray(args[0]) ? args[0] : args;
let pulled = arr.filter((v, i) => !argState.includes(v));
arr.length = 0;
pulled.forEach(v => arr.push(v));
return pulled;
};
let arra1 = ['a', 'b', 'c', 'a', 'b', 'c'];
console.log(pull(arra1, 'a', 'c'));
let arra2 = ['a', 'b', 'c', 'a', 'b', 'c'];
console.log(pull(arra2, 'b'));
Sample Output:
["b","b"] ["a","c","a","c"]
Pictorial Presentation:
Flowchart:

Live Demo:
See the Pen javascript-basic-exercise-1-8 by w3resource (@w3resource) on CodePen.
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