trim() === ''){ document.write('String is empty'); } Following is the output of the above program −String is empty So, we have seen how to check the empty string in JavaScript using the length property and trim() method. Print Page Previous Next ...
This can be useful for preventing errors, handling edge cases, or implementing conditional logic. In this tutorial, we will give you three examples of how to check if a string is empty or null by using plain JavaScript, React, and Vue. We will also explain the differences and similarities ...
In this tutorial, we are going to show you the ways of checking whether the JavaScript string is empty, undefined, or null. Just follow the guidelines.
In Vue.js, how do you check if a string is empty? In Vue.js, you can check if a string is empty by using the JavaScript method 'str.length', which returns the number of characters in a string.This property returns the number of characters in the string, so if the string is empty...
JavaScript Code: // Define a function named 'test' that checks if a given string is a palindromeconsttest=(text)=>{// Check if the input is not a stringif(typeoftext!=='string'){return'String should not be empty!';}// Check if the length of the string is less than or equal to...
How to Check if Object is Empty in JavaScriptHere's a Code Recipe to check if an object is empty or not. For newer browsers, you can use plain vanilla JS and use the new "Object.keys" 🍦 But for older browser support, you can install the Lodash library and use their "isEmpty" ...
$myString = ""; if (empty($myString)) { echo "string is empty"; }else{ echo "string is not empty"; } Output: "string is empty" Similarly, we can also use the strlen() function to check for an empty string in PHP. $myString = ""; if (strlen($myString) == 0) { echo ...
and(check.unemptyString, isFoo); // only true for "foo"Both check.or and check.and are very useful inside check.schema to create more powerful predicates on the fly.var isFirstLastNames = check.schema.bind(null, { first: check.unemptyString, last: check.unemptyString }); var is...
string is not empty string is empty Explanation In the above program, we used an object-oriented approach to create the program. And, we created an objectSample. Here, we definedmain()function. Themain()function is the entry point for the program. ...
Use thestrlen()Function to Check if String Is Empty in C++ Thestrlen()function is part of the C string library and can be utilized to retrieve the string’s size in bytes. This method could be more flexible for bothstringandchar*type strings that may come up in the codebase.strlentakes...