JAVASCRIPT TRIGGER CLICK

We basically face some type of situation during programming in javascript in which we can create any function on the button click. For example, we have to examine some more functionality in the time of automation testing of a web page or a site. In such cases, the triggering click event technique of javascript becomes more reliable and efficient for countering the stated challenges.

In this context, we will learn about the trigger click event procedures in javascript.

How we can trigger click event in javascript:

We have to apply the techniques given below to trigger the click event in javascript:

a) click() method

b) addEventListener() and dispathEvent methods

Now we will use the methods which have written above to demonstrate as follows:

Method 1:

Trigger click event using click event method in javascript:

On the mentioned element, the click method is used to perform the action. Using the user-defined function when the required button is clicked by the user with the help of the creation of the button, getting its id, and triggering the click event, this method can be implemented.

For further clarification, we have to go through the example given below:

Example:

In the example given below with having "click here", a button will be created with id and along with the click event for accessing the click event on it;

By specifying its id in javascript, we have to access the created button in the document.getElementById method. To perform the next operation, the click event will be invoked.

At last, when the button is clicked, we will define to print out the following function named "clickEvent()" in a way that on the console using the click method.

From the above output of the respective code, using the click method in an automated way, we have observed that the button click here is clicked.

Method 2:

Trigger click event in javascript by the help of addEventListener() and dispatchEvent() method

In javascript, it is the integral method that is provided by the javascript event target interface.

An event listener is registered by this method. We will call our configured function when the mentioned event is caught on the target.

Syntax of the event:

description of the syntax:

• In the above syntax, there is a parameter called $type, which is a mandatory parameter. Indicating the type of the event to be monitored, the parameters accept only one string. This parameter is a case-sensitive parameter. Various events are supported by it, such as keyboard, click, database, input, etc
• In the same manner, the $listener is a mandatory parameter also in it. A notification about the event is received by this parameter as an object when an event of the mentioned type has occurred. On the javascript function or on an Eventlistner interface, this object should be implemented.
• On the other hand, the $option is an optional parameter in it.

Example: 1

Output:

"The required event is triggered".
"The required event is triggered".
"The required event is triggered".
"The required event is triggered".
"The required event is triggered".

Example 2:

In this example, first of all, we will include a button with a corresponding id with an onclick event along with a value as same as like previous one.

After that, with the help of the addEventListener() method, we will retrieve the button and click the event in it to specify the "e" in its argument, which refers to the event click object.

Finally, as same as the previous method, we will define the click event to display the corresponding message in it at the time the click event is triggered.