The article discusses how to use ANSI escape sequences to style text printed to the console in Node.js. Initially introduced in the 1970s, these sequences enable control over cursor location, colors, and font styles in text terminals. Although traditional hardware terminals are rare now, modern terminal emulators still support many ANSI commands. The Select Graphic Rendition (SGR) enhances text display attributes, using escape sequences like \x1B to apply modifiers such as bold. Node.js offers a built-in utility for styling console output effectively with various attributes through the `util.styleText` function.
If we want to style text we print to a terminal, we use ANSI escape sequences.
ANSI escape sequences are a standard for in-band signaling to control cursor location, color, font styling, and other options on video text terminals.
The relevance of the ANSI standard persists because a great majority of terminal emulators and command consoles interpret at least a portion of the ANSI standard.
Node.js has a built-in function for creating strings with SGR control sequences.
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