How to know which button is clicked in javascript

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In this tutorial, we will learn how we can find the value of a button with . Sometimes, we need to use the button tag inside the form tag, where we assign a particularly unique value to each associated with the <form> element using the value attribute.

Which later helps the developer to uniquely identify the elements while working with them in the back end. value property to get the value passed inside the value attribute

Let us discuss the value property in detail.

Button value Property

The button value property is used to get the value of the value attribute of the button.

Syntax

The following is the syntax to get value of value attribute of the button.

let varName = document.getElementById("id").value;

Steps

• Step 1 − We first create a button inside a form with a value associated with value attribute.
• Step 2 − Next, we target the button element with its id and get the value of the value attribute using the value property.
• Step 3 − In the last step, we will display the value extracted from the value attribute on the user screen.

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