Syntax
js
fontsize(size)
Parameters
size-
An integer between 1 and 7, or a string representing a signed integer between 1 and 7.
Return value
A string beginning with a <font size="size"> start tag (double quotes in size are replaced with "), then the text str, and then a </font> end tag.
Description
The fontsize() method itself simply joins the string parts together without any validation or normalization. However, to create valid <font> elements, When you specify size as an integer, you set the font size of str to one of the 7 defined sizes. You can specify size as a string such as "-2" or "+3" to adjust the font size of str relative to 3, the default value.
Examples
Using fontsize()
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.fontsize(7);
This will create the following HTML:
html
<font size="7">Hello, world</font>
Warning:
This markup is invalid, because font is no longer a valid element.
Instead of using fontsize() and creating HTML text directly, you should use CSS to manipulate fonts. For example, you can manipulate font-size through the element.style attribute:
js
document.getElementById("yourElemId").style.fontSize = "7pt";
Specifications
| Specification |
|---|
| ECMAScript® 2027 Language Specification # sec-string.prototype.fontsize |