In this article, we’ll discuss three of the most common methods for getting the selected value in a dropdown list: using the value property, using the selectedIndex property, and using the options collection.
Forms
How To Check if a Checkbox is Checked With JavaScript or jQuery
Checking if a checkbox is checked in JavaScript can be done using the checked property of the checkbox element. This property returns a boolean value indicating whether the checkbox is currently checked or not. Here’s an example of how to check if a checkbox with the ID “myCheckbox” is checked using JavaScript: You can also […]
How To Validate an Email Address In JavaScript
In this article, we will discuss several methods for validating email addresses in JavaScript, including using regular expressions and built-in JavaScript methods.
Preventing paste into an input field
See the codepen: https://codepen.io/JSsnippets/pen/qBbyMoJ Source https://github.com/roeib/JavaScript-snippets#preventing-paste-into-an-input-field
Create a range slider
This post introduces two popular ways to create a range slider.
Automatically expand a textarea as the user types
A really neat little helper function that automatically expands a textarea as the user types in.
Trigger an event
There are some special events that are avaialble as the method’s element.
Count the number of characters of a textarea
Count the number of characters by handling the input event which is triggered if the value of element is changed.
Serialize form data into a query string
This function serializes the form data which consists of names and values of its fields.
Validate Numeric Only
This script verifies that a string is numeric, otherwise it deletes the non-numeric character.