JavaScript: Cast the provided value as an array if it's not one

JavaScript fundamental (ES6 Syntax): Exercise-61 with Solution

Write a JavaScript program to cast the provided value as an array if it's not one.

• Use Array.prototype.isArray() to determine if val is an array and return it as-is or encapsulated in an array accordingly.

Sample Solution:

JavaScript Code:

//#Source https://bit.ly/2neWfJ2 
const castArray = val => (Array.isArray(val) ? val : [val]);
console.log(castArray('w3r')); 
console.log(castArray([100]));

Sample Output:

["w3r"]
[100]

Pictorial Presentation:

Flowchart:

Live Demo:

See the Pen javascript-basic-exercise-61-1 by w3resource (@w3resource) on CodePen.

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