String.prototype.fontsize()

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 fontsize() method creates a <font> HTML element that causes a string to be displayed in the specified font size.

Note: The <font> element has been removed in HTML5 and shouldn't be used anymore. Instead web developers should use CSS properties.

Syntax

fontsize(size)

Parameters

size: An integer between 1 and 7, a string representing a signed integer between 1 and 7.

Return value

A string containing a <font> HTML element.

Description

When you specify size as an integer, you set the font size of str to one of the 7 defined sizes. When you specify size as a string such as "-2", you adjust the font size of str relative to the size set in the <basefont> element.

Examples

Using fontsize()

The following example uses string methods to change the size of a string:

var worldString = 'Hello, world';

console.log(worldString.small());     // <small>Hello, world</small>
console.log(worldString.big());       // <big>Hello, world</big>
console.log(worldString.fontsize(7)); // <font size="7">Hello, world</fontsize>

With the element.style object you can get the element's style attribute and manipulate it more generically, for example:

document.getElementById('yourElemId').style.fontSize = '0.7em';

Specifications

Specification
ECMAScript Language Specification (ECMAScript) # sec-string.prototype.fontsize

Browser compatibility

	Desktop						Mobile
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	WebView Android	Chrome Android	Firefox for Android	Opera Android	Safari on IOS	Samsung Internet
`fontsize`	1	12	1	3	3	1	1	18	4	10.1	1	1.0