String.prototype.blink()

Deprecated

Avoid using this feature in new projects. HTML wrapper methods exist only for backwards compatibility. Use DOM APIs to create elements instead. This feature may be a candidate for removal from web standards or browsers.

Consider using the following features instead: DOM.

The blink() method of String values creates a string that embeds this string in a <blink> element (<blink>str</blink>), which used to cause a string to blink in old browsers.

Note: All HTML wrapper methods are deprecated and only standardized for compatibility purposes. For the case of blink(), the <blink> element itself is removed from modern browsers, and blinking text is frowned upon by several accessibility standards. Avoid using the element in any way.

Syntax

js
blink()

Parameters

None.

Return value

A string beginning with a <blink> start tag, then the text str, and then a </blink> end tag.

Examples

The code below creates an HTML string and then replaces the document's body with it:

js
const contentString = "Hello, world";

document.body.innerHTML = contentString.blink();

This will create the following HTML:

html
<blink>Hello, world</blink>

Warning: This markup is invalid, because blink is no longer a valid element.

You should avoid blinking elements altogether.

Specifications

Specification
ECMAScript® 2027 Language Specification
# sec-string.prototype.blink

Browser compatibility

See also