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String.prototype.blink()

Deprecated: This feature is no longer recommended. Though some browsers might still support it, it may have already been removed from the relevant web standards, may be in the process of being dropped, or may only be kept for compatibility purposes. Avoid using it, and update existing code if possible; see the compatibility table at the bottom of this page to guide your decision. Be aware that this feature may cease to work at any time.

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

blink()

Parameters

None.

Return value

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

Examples

Using blink()

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

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 Language Specification # sec-string.prototype.blink

Browser compatibility

	Desktop						Mobile						Server
	Chrome	Edge	Firefox	Opera	Safari	Chrome Android	Firefox for Android	Opera Android	Safari on IOS	Samsung Internet	WebView Android	Deno	Node.js
`blink`	1	12	1	3	1	18	4	10.1	1	1.0	4.4	1.0	0.10.0