Check if string is not empty javascript

Understanding an Empty String

It is represented by a pair of double quotation marks ("") or a pair of single quotation marks (''). An empty string is different from a null or undefined value.

Related Article: How to Use TypeScript with Next.js

Approach 1: Using the length Property

The length property returns the number of characters in a string.

Javascript check null or undefined or empty

Javascript check null or undefined or empty

Javascript empty string

Check if string is empty python

Javascript empty()

Javascript check empty array

If the length of a string is 0, it means the string is empty.

Here's an example code snippet that demonstrates how to use the length property to check for an empty string:

function isEmptyString(str) { return str.length === 0;}console.log(isEmptyString("")); // trueconsole.log(isEmptyString("Hello")); // false

In the above example, the function takes a string as an argument and checks if its length is equal to 0.

If it is, the function returns true, indicating that the string is empty. Otherwise, it returns false.

This approach is straightforward and works well for most scenarios where you want to check for an empty string.

However, it's worth noting that this method will also consider a string consisting of whitespace characters a

how to check empty string in js