Getting started with JavaScript sup method (displaying strings as superscripts)_Basic knowledge

The

sup method returns a superscript string defined using the HTML sup tag attribute. Its syntax is as follows:

Copy code The code is as follows:

str_object.sup()

Tip: This method does not comply with ECMA standards and is not recommended.

sup method example:

Copy code The code is as follows:

Run this example, output:

Copy code The code is as follows:

Script House^{Every bit of progress is a solid footprint on our road to success}

Tip: This method returns a superscript string defined using the HTML sup tag, even though you cannot directly change the string to a superscript style using this method. If you want to dynamically change the element font to a superscript style, you can refer to the following example:

Change the font text top and bottom alignment (superscript/subscript)

Copy code The code is as follows:

Subscript style Superscript style

Script HouseEvery bit of progress is a solid footprint on our road to success

In this example, JavaScript is used to control the text CSS vertical-align style to dynamically change the upper and lower alignment (superscript/subscript) of the font text.