How to use confirm in js

Use of confirm() method in JavaScript Confirmation dialog box: The confirm() method is used in JavaScript to display a confirmation dialog box to the user, asking whether to agree to an operation. Usage: Pass a string as parameter as the message text in the dialog box. Return Value: Returns a Boolean value representing the button the user clicked ("OK" or "Cancel"). Usage Tips: Use only when confirmation is required, avoid abuse, and provide other methods to confirm or cancel operations.

Usage of confirm() method in JavaScript

What is confirm() method?

The confirm() method is a built-in function in JavaScript that is used to display a confirmation dialog box to the user, asking the user whether they agree to an operation.

How to use confirm() method?

To use the confirm() method, simply pass as a parameter a string that you want to display to the user. This string will be used as the message text in the dialog box.

<code class="js">const result = confirm("确定要删除此项目吗？");</code>

Return value

confirm() method returns a Boolean value indicating which button the user clicked:

• true: user The OK button was clicked.
• false: The user clicked the "Cancel" button.

Example

Consider the following example:

<code class="js">if (confirm("确定要将此文件保存为 PDF 吗？")) {
  // 如果用户单击“确定”，执行保存文件的代码。
} else {
  // 如果用户单击“取消”，执行其他代码。
}</code>

Usage Tips

• Only use the confirm() method when user confirmation is truly required.
• Message text should be short and clear, conveying the action to be performed.
• Don't abuse the confirm() method as frequent pop-ups can be annoying.
• Consider providing another way for the user to confirm or cancel the operation before using the confirm() method.

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