JavaScript: Check if a given string is upper case or not

JavaScript fundamental (ES6 Syntax): Exercise-184 with Solution

Write a JavaScript program to check if a given string is upper case or not.

• Convert the given string to upper case, using String.prototype.toUpperCase() and compare it to the original.

Sample Solution:

JavaScript Code:

//#Source https://bit.ly/2neWfJ2 
const isUpperCase = str => str === str.toUpperCase();
console.log(isUpperCase('ABC')); 
console.log(isUpperCase('A3@$'));
console.log(isUpperCase('aB4'));

Sample Output:

true
true
false

Pictorial Presentation:

Flowchart:

Live Demo:

See the Pen javascript-basic-exercise-184-1 by w3resource (@w3resource) on CodePen.

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