HTML and CSS Reference
In-Depth Information
Way back when JavaScript was first created, no one wor-
ried too much about performance. JavaScript was built
to be a straightforward language for running small bits of
script in a web page. JavaScript was a frill—a simplified
version of Java for amateur programmers. It certainly
wasn't meant to run anyone's business.
Fast forward nearly 20 years, and JavaScript has taken
over the Web. Developers use it to add interactivity to al-
most every sort of page, from games and mapping tools
to shopping carts and fancy forms. But in many ways, the
JavaScript language is still scrambling to catch up to its
high status.
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