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snippets/js/s/colorize.md

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+---
+title: Colorize text
+type: snippet
+language: javascript
+tags: [node,string]
+cover: sea-view
+dateModified: 2020-11-03T22:11:18+02:00
+---
+
+Adds special characters to text to print in color in the console (combined with `console.log()`).
+
+- Use template literals and special characters to add the appropriate color code to the string output.
+- For background colors, add a special character that resets the background color at the end of the string.
+
+```js
+const colorize = (...args) => ({
+  black: `\x1b[30m${args.join(' ')}`,
+  red: `\x1b[31m${args.join(' ')}`,
+  green: `\x1b[32m${args.join(' ')}`,
+  yellow: `\x1b[33m${args.join(' ')}`,
+  blue: `\x1b[34m${args.join(' ')}`,
+  magenta: `\x1b[35m${args.join(' ')}`,
+  cyan: `\x1b[36m${args.join(' ')}`,
+  white: `\x1b[37m${args.join(' ')}`,
+  bgBlack: `\x1b[40m${args.join(' ')}\x1b[0m`,
+  bgRed: `\x1b[41m${args.join(' ')}\x1b[0m`,
+  bgGreen: `\x1b[42m${args.join(' ')}\x1b[0m`,
+  bgYellow: `\x1b[43m${args.join(' ')}\x1b[0m`,
+  bgBlue: `\x1b[44m${args.join(' ')}\x1b[0m`,
+  bgMagenta: `\x1b[45m${args.join(' ')}\x1b[0m`,
+  bgCyan: `\x1b[46m${args.join(' ')}\x1b[0m`,
+  bgWhite: `\x1b[47m${args.join(' ')}\x1b[0m`
+});
+```
+
+```js
+console.log(colorize('foo').red); // 'foo' (red letters)
+console.log(colorize('foo', 'bar').bgBlue); // 'foo bar' (blue background)
+console.log(colorize(colorize('foo').yellow, colorize('foo').green).bgWhite);
+// 'foo bar' (first word in yellow letters, second word in green letters, white background for both)
+```