More "Try it Yourself" examples below.
Definition and Usage
The confirm() method displays a dialog box with a specified message, along with an OK and a Cancel button.
A confirm box is often used if you want the user to verify or accept something.
Note: The confirm box takes the focus away from the current window, and forces the browser to read the message. Do not overuse this method, as it prevents the user from accessing other parts of the page until the box is closed.
The confirm() method returns true if the user clicked "OK", and false otherwise.
Browser Support
| Method | |||||
|---|---|---|---|---|---|
| confirm() | Yes | Yes | Yes | Yes | Yes |
Syntax
confirm(message)
Parameter Values
| Parameter | Type | Description |
|---|---|---|
| message | String | Optional. Specifies the text to display in the confirm box |
Technical Details
| Return Value: | A Boolean, indicating whether "OK" or "Cancel" was clicked in the dialog box:
|
|---|
More Examples
Example
Display a confirmation box, and output what the user clicked:
var txt;
var r = confirm("Press a button!");
if (r == true) {
txt =
"You pressed OK!";
} else {
txt = "You pressed Cancel!";
}
Try it Yourself »
Example
Confirmation box with line-breaks:
confirm("Press a button!\nEither OK or Cancel.");
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Related Pages
Window Object: href="met_win_alert.html">alert() Method
Window Object: href="met_win_prompt.html">prompt() Method
< Window Object