Function isBlank

Checks if a String contains only whitespace characters

Example

Returns true if the String is empty

const result = isBlank("");
console.log(result); // true

Example

Returns true if the String contains only whitespace characters

const result = isBlank(" ");
console.log(result); // true

Example

Returns false if the String contains any non-whitespace character

const result = isBlank(" a ");
console.log(result); // false

Returns

true if the String is empty or all characters are whitespace, otherwise false