# alert function

The function `alert` shows a modal box with a given message. The site user will not be able to continue working until he/she clicks on the `OK` button. Only text will be displayed, tags in the modal box will be ignored.

## Syntax

`alert(message);`

## Example

Let's make it so that when the button is clicked, a modal box appears with a message:

`<button id="button">click me</button>` `let button = document.querySelector('#button'); button.addEventListener('click', function(event) { alert('abcde'); });`

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## See also

- the `confirm` function
  that brings up a confirmation dialog box
- the `prompt` function
  that brings up a dialog box with a question

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