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The cli-color npm package is a library for adding color and formatting to text in Node.js command line applications. It provides a simple API to style strings that appear in the terminal, making it easier to produce visually distinct and organized output.
Text coloring
This feature allows you to change the color of the text output in the terminal. The example shows how to make text appear in red.
const clc = require('cli-color');
console.log(clc.red('This text is red'));
Text formatting
This feature enables text formatting such as making text bold, underlined, etc. The example demonstrates how to make text bold.
const clc = require('cli-color');
console.log(clc.bold('This text is bold'));
Background coloring
This feature allows you to set the background color of the text. The example shows white text on a blue background.
const clc = require('cli-color');
console.log(clc.bgBlue.white('White text on blue background'));
Chalk is a popular npm package similar to cli-color with a chainable API that allows for easier and more readable syntax. Chalk supports modern terminal features and has a broader color palette compared to cli-color.
Colors is another npm package that adds colors to Node.js console output. It extends String.prototype to add color methods directly to strings, which can be less modular and potentially messier than cli-color's functional approach.
Colors, formatting and other goodies for the console. This package won't mess with built-ins and provides neat way to predefine formatting patterns, see below.
$ npm install cli-color
Usage:
var clc = require('cli-color');
Output colored text:
console.log(clc.red('Text in red'));
Styles can be mixed:
console.log(clc.red.bgWhite.underline('Underlined red text on white background.'));
Styled text can be mixed with unstyled:
console.log(clc.red('red') + ' plain ' + clc.blue('blue'));
Best way is to predefine needed stylings and then use it:
var error = clc.red.bold;
var warn = clc.yellow;
var notice = clc.blue;
console.log(error('Error!'));
console.log(warn('Warning'));
console.log(notice('Notice'));
Supported are all ANSI colors and styles:
Styles will display correctly if font used in your console supports them.
Foreground | Background | |
---|---|---|
black | bgBlack | |
red | bgRed | |
green | bgGreen | |
yellow | bgYellow | |
blue | bgBlue | |
magenta | bgMagenta | |
cyan | bgCyan | |
white | bgWhite |
Foreground | Background | |
---|---|---|
blackBright | bgBlackBright | |
redBright | bgRedBright | |
greenBright | bgGreenBright | |
yellowBright | bgYellowBright | |
blueBright | bgBlueBright | |
magentaBright | bgMagentaBright | |
cyanBright | bgCyanBright | |
whiteBright | bgWhiteBright |
Not supported on Windows and some terminals. However if used in not supported environment, the closest color from basic (16 colors) palette is chosen.
Usage:
var msg = clc.xterm(202).bgXterm(236);
console.log(msg('Orange text on dark gray background'));
Color table:
0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | ||||||||
8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | ||||||||
16 | 17 | 18 | 19 | 20 | 21 | ||||||||||
22 | 23 | 24 | 25 | 26 | 27 | ||||||||||
28 | 29 | 30 | 31 | 32 | 33 | ||||||||||
34 | 35 | 36 | 37 | 38 | 39 | ||||||||||
40 | 41 | 42 | 43 | 44 | 45 | ||||||||||
46 | 47 | 48 | 49 | 50 | 51 | ||||||||||
52 | 53 | 54 | 55 | 56 | 57 | ||||||||||
58 | 59 | 60 | 61 | 62 | 63 | ||||||||||
64 | 65 | 66 | 67 | 68 | 69 | ||||||||||
70 | 71 | 72 | 73 | 74 | 75 | ||||||||||
76 | 77 | 78 | 79 | 80 | 81 | ||||||||||
82 | 83 | 84 | 85 | 86 | 87 | ||||||||||
88 | 89 | 90 | 91 | 92 | 93 | ||||||||||
94 | 95 | 96 | 97 | 98 | 99 | ||||||||||
100 | 101 | 102 | 103 | 104 | 105 | ||||||||||
106 | 107 | 108 | 109 | 110 | 111 | ||||||||||
112 | 113 | 114 | 115 | 116 | 117 | ||||||||||
118 | 119 | 120 | 121 | 122 | 123 | ||||||||||
124 | 125 | 126 | 127 | 128 | 129 | ||||||||||
130 | 131 | 132 | 133 | 134 | 135 | ||||||||||
136 | 137 | 138 | 139 | 140 | 141 | ||||||||||
142 | 143 | 144 | 145 | 146 | 147 | ||||||||||
148 | 149 | 150 | 151 | 152 | 153 | ||||||||||
154 | 155 | 156 | 157 | 158 | 159 | ||||||||||
160 | 161 | 162 | 163 | 164 | 165 | ||||||||||
166 | 167 | 168 | 169 | 170 | 171 | ||||||||||
172 | 173 | 174 | 175 | 176 | 177 | ||||||||||
178 | 179 | 180 | 181 | 182 | 183 | ||||||||||
184 | 185 | 186 | 187 | 188 | 189 | ||||||||||
190 | 191 | 192 | 193 | 194 | 195 | ||||||||||
196 | 197 | 198 | 199 | 200 | 201 | ||||||||||
202 | 203 | 204 | 205 | 206 | 207 | ||||||||||
208 | 209 | 210 | 211 | 212 | 213 | ||||||||||
214 | 215 | 216 | 217 | 218 | 219 | ||||||||||
220 | 221 | 222 | 223 | 224 | 225 | ||||||||||
226 | 227 | 228 | 229 | 230 | 231 | ||||||||||
232 | 233 | 234 | 235 | 236 | 237 | ||||||||||
238 | 239 | 240 | 241 | 242 | 243 | ||||||||||
244 | 245 | 246 | 247 | 248 | 249 | ||||||||||
250 | 251 | 252 | 253 | 254 | 255 |
Terminal can be cleared with clc.reset
console.log(clc.reset);
Move cursor x columns and y rows away. Values can be positive or negative, e.g.:
process.stdout.write(clc.move(-2, -2)); // Move cursors two columns and two rows back
Absolute move. Sets cursor position at x column and y row
process.stdout.write(clc.moveTo(0, 0)); // Move cursor to first row and first column in terminal window
Move cursor to the begining of the line, with n we may specify how many lines away we want to move, value can be positive or negative. Additionally we may decide to clear lines content with erase
process.stdout.write(clc.bol(-2)); // Move cursor two lines back and place it at begin of the line
Move cursor up n rows
Move cursor down n rows
Move cursor right n columns
Move cursor left n columns
Returns terminal width
Returns terminal height
Trims ANSI formatted string to plain text
var ansiTrim = require('cli-color/lib/trim');
var plain = ansiTrim(formatted);
Displays throbber on given interval. Interval should be clock.interval object Optionally throbber output can be formatted with given format
var interval = require('clock/lib/interval')
, ansiThrobber = require('cli-color/lib/throbber');
var i = interval(200, true);
// Display throbber while interval is ticking
ansiThrobber(i);
// at any time you can stop/start interval
// When interval is stopped throbber doesn't show
i.stop();
$ npm test
FAQs
Colors, formatting and other tools for the console
We found that cli-color demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 1 open source maintainer collaborating on the project.
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