How to use alert in js

JavaScript alert() function is a pop-up window function. The user can specify a text string or a value to be converted to a string as a parameter, which is displayed in the prompt window and used to display a brief notification.

Usage of alert() function in JavaScript

What is alert() function? The

alert() function is a JavaScript function that pops up a window in the user interface to display a specified message.

Syntax:

<code>alert(message);</code>

Parameters:

• message: Text string to be displayed or anything to be converted is the value of a string.

How to use alert() function?

To use the alert() function, simply call it in your JavaScript code, specifying the message you want to display in the alert window. For example:

<code>alert("欢迎访问我的网站！");</code>

This will pop up a window in the user interface with the message "Welcome to my website!".

Example:

Use the alert() function to pop up a window with the text "Submission successful":

<code>alert("提交成功！");</code>

Use the alert() function to pop up Window with the number "123":

<code>alert(123);</code>

Tip:

• alert() function is a blocking function, which means it pauses code execution , until the user closes the prompt window.
• alert() function is only used to display short notifications or messages and is not suitable for complex or interactive operations.
• You can use other JavaScript functions such as confirm() and prompt() to obtain user input or provide other types of dialog boxes.

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