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JavaScript String length | Find Length of a String
The JavaScript length property is used when we need to find the length of a string. For example:
HTML with JavaScript Code
<!DOCTYPE html> <html> <body> <p id="xyz"></p> <script> let myString = "fresherearth"; document.getElementById("xyz").innerHTML = myString.length; </script> </body> </html>
Output
JavaScript string.length Syntax
The syntax of string.length property in JavaScript is:
string.length
where string refers to the string whose length we need to calculate. And length is the property that is used to find the length of string.
Find Length of a String entered by User in JavaScript
Let me create an example that allows user to enter any string to find its length. That is, the example given below produces an output that allows you to enter a string. After entering the string, click on the Find Length button to get the length of entered string:
HTML with JavaScript Code
<!DOCTYPE html> <html> <body> <script> function myFun() { let x, len, temp; x = document.getElementById("str").value; len = x.length; temp = document.getElementById("resPara"); temp.style.display = "block"; document.getElementById("res").innerHTML = len; } </script> <p>Enter a String: <input id="str"><BR> <button onclick="myFun()">Find Length</button></p> <p id="resPara" style="display: none;"> Length of Given String is: <span id="res"></span></p> </body> </html>
Output
Enter a String:
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