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by Patrik
How to Check if a String is Empty in JavaScript?
Question: How can I check if a string is empty?
Option 1: Check using ""
if (str === "") {
}Note: to know if it's an empty string use === instead of ==. This is because === will only return true if the values on both sides are of the same type, in this case a string. for example: (false == "") will return true, and (false === "") will return false.
Option 2: Check length of string
if (!str || str.trim().length === 0) {
}Referenced in:
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