Javascript Questions

How to Check/Uncheck checkbox with JavaScript? Use the GetElementById property and assign the checked is true for Check or false for Uncheck checkbox in JavaScript.… Read More »JavaScript set checkbox checked | Check/Uncheck checkbox Example code

How to check checkbox is checked or not in JavaScript? A checked is Boolean property so you can directly use it in IF condition, whether… Read More »Checkbox checked JavaScript | HTML example code

Use JavaScript to find email address in a string? Use the match method with a regular expression to extract email from a string in JavaScript.… Read More »JavaScript extract email from string | regex example code

Using the regular expression and match method you can extract phone numbers from strings in JavaScript. Let’s take three different patterns of number that you… Read More »Javascript extract phone number from string/text | RegEx read a mobile number

How to get numeric value from string JavaScript? Simply use a regular expression in the replace function to get numbers from the string in JS.… Read More »JavaScript extract number from string | RegEx & Replace function example

How to add a number and a string in JavaScript? In JavaScript, the plus + operator is used for numeric addition and string concatenation. To… Read More »JavaScript add the number to a string | Explanation & Example code

You can use the navigator API to detect whether the device browser is a tablet or not in the HTML webpage. Of course, you have… Read More »JavaScript detect tablet | HTML Example code

HTML webpage can detect mobile devices using JavaScript. Use JavaScript with regular expression tests to detect if a browser is a mobile device or not.… Read More »JavaScript detect mobile device browser | HTML Example code