JavaScript: Negates a predicate function
JavaScript fundamental (ES6 Syntax): Exercise-89 with Solution
Write a JavaScript program to negates a predicate function.
Note: Take a predicate function and apply the not operator (!) to it with its arguments.
- Take a predicate function and apply the not operator (!) to it with its arguments.
Sample Solution:
JavaScript Code:
//#Source https://bit.ly/2neWfJ2
// Define the function 'negate' to negate the result of a given function.
const negate = func => (...args) => !func(...args);
// Example usage:
console.log([1, 2, 3, 4, 5, 6].filter(negate(n => n % 2 === 0)));
// Outputs: [1, 3, 5] (filtering out the even numbers)
Output:
[1,3,5]
Flowchart:
Live Demo:
See the Pen javascript-basic-exercise-89-1 by w3resource (@w3resource) on CodePen.
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