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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Previous: Write a JavaScript program to create a function that invokes the method at a given key of an object, optionally adding any additional supplied parameters to the beginning of the arguments.
Next: Write a JavaScript program to chain asynchronous functions.
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