JavaScript has several built-in string methods that can be used to format a string. For example, you can convert a string to upper case or lower case, remove whitespace, replace characters, and more.

format old JavaScript dates in a “pretty” way. ex : 2 hours ago , 3 minutes ago - netcode/node-prettydate ...

The format string can take any of the following format variables preceeded with a "%". The following table specifies the format string options available.

Google, Microsoft, Mozilla and some of the engineers on the WebKit project today announced that they have teamed up to launch WebAssembly, a new binary format for compiling applications for the web.