JavaScript: Check whether the given argument is a native boolean element

JavaScript fundamental (ES6 Syntax): Exercise-204 with Solution

Write a JavaScript program that checks if the given argument is a native Boolean element.

• Use typeof to check if a value is classified as a boolean primitive.

Sample Solution:

JavaScript Code:

//#Source https://bit.ly/2neWfJ2 
const isBoolean = val => typeof val === 'boolean';

console.log(isBoolean(null));
console.log(isBoolean(false));

Sample Output:

false
true

Flowchart:

Live Demo:

See the Pen javascript-basic-exercise-204-1 by w3resource (@w3resource) on CodePen.

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