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 bold()
method creates a <b>
HTML element that causes a string to be displayed as bold.
Syntax
str.bold()
Return value
A string containing a <b>
HTML element.
Description
The bold()
method embeds a string in a <b>
tag: "<b>str</b>"
.
Examples
Using bold()
The following example uses string methods to change the formatting of a string:
var worldString = 'Hello, world'; console.log(worldString.blink()); // <blink>Hello, world</blink> console.log(worldString.bold()); // <b>Hello, world</b> console.log(worldString.italics()); // <i>Hello, world</i> console.log(worldString.strike()); // <strike>Hello, world</strike>
Specifications
Specification | Status | Comment |
---|---|---|
ECMAScript 2015 (6th Edition, ECMA-262) The definition of 'String.prototype.bold' in that specification. |
Standard | Initial definition. Implemented in JavaScript 1.0. Defined in the (normative) Annex B for Additional ECMAScript Features for Web Browsers. |
ECMAScript Latest Draft (ECMA-262) The definition of 'String.prototype.bold' in that specification. |
Draft | Defined in the (normative) Annex B for Additional ECMAScript Features for Web Browsers. |
Browser compatibility
The compatibility table in this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.
Desktop | Mobile | Server | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
bold | Chrome Full support 1 | Edge Full support 12 | Firefox Full support 1 | IE Full support 3 | Opera Full support Yes | Safari Full support Yes | WebView Android Full support 1 | Chrome Android Full support 18 | Firefox Android Full support 4 | Opera Android Full support Yes | Safari iOS Full support Yes | Samsung Internet Android Full support 1.0 | nodejs Full support Yes |
Legend
- Full support
- Full support
- Deprecated. Not for use in new websites.
- Deprecated. Not for use in new websites.