JavaScript: Check whether a string is blank or not
JavaScript String: Exercise-2 with Solution
Write a JavaScript function to check whether a string is blank or not.
Test Data :
console.log(is_Blank(''));
console.log(is_Blank('abc'));
true
false
Pictorial Presentation:

Sample Solution:-
HTML Code:
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>JS string : is blank</title>
</head>
<body>
</body>
</html>
JavaScript Code:
is_Blank = function(input) {
if (input.length === 0)
return true;
else
return false;
}
console.log(is_Blank(''));
console.log(is_Blank('abc'));
Sample Output:
true false
Flowchart:

Live Demo:
See the Pen JavaScript Check whether a string is blank or not - string-ex-2 by w3resource (@w3resource) on CodePen.
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Previous: Write a JavaScript function to check whether an 'input' is a string or not.
Next: Write a JavaScript function to split a string and convert it into an array of words.
What is the difficulty level of this exercise?
JavaScript: Tips of the Day
JavaScript: Shorten your "if" statements
Now this is a tricky one.
Shortening your0 "if" statements can be a great way to simplify your code.
However, if you need to write more complicated statements, you should definitely go for the first option.
// Instead of using this if (iAmHungry) { bakeAnEgg() } // You can use this if (iAmHungry) bakeAnEgg() // Or this iAmHungry? bakeAnEgg() : 0
Remember, readability & ease-of-use are more important than a couple less lines of code.
Ref: https://bit.ly/2LBj213
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