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    align-text
    DefinitelyTyped icon, indicating that this package has TypeScript declarations provided by the separate @types/align-text package

    0.1.4 • Public • Published

    align-text NPM version Build Status

    Align the text in a string.

    Examples

    Align text values in an array:

    align([1, 2, 3, 100]);
    //=> ['  1', '  2', '  3', '100']

    Or do stuff like this:

    screen shot 2015-06-09 at 2 08 34 am

    Visit the example to see how this works.

    Install

    Install with npm

    $ npm i align-text --save

    Usage

    var align = require('align-text');
    align(text, callback_function_or_integer);

    Params

    • text can be a string or array. If a string is passed, a string will be returned. If an array is passed, an array will be returned.
    • callback|integer: if an integer, the text will be indented by that amount. If a function, it must return an integer representing the amount of leading indentation to use as align loops over each line.

    Example

    align(text, 4);

    Would align:

    abc
    abc
    abc
    

    To:

        abc
        abc
        abc
    

    callback

    params

    The callback is used to determine the indentation of each line and gets the following params:

    • len the length of the "current" line
    • longest the length of the longest line
    • line the current line (string) being aligned
    • lines the array of all lines

    return

    The callback may return:

    • an integer that represents the number of spaces to use for padding,
    • or an object with the following properties:
      • indent: {Number} the amount of indentation to use. Default is 0 when an object is returned.
      • character: {String} the character to use for indentation. Default is '' (empty string) when an object is returned.
      • prefix: {String} leading characters to use at the beginning of each line. '' (empty string) when an object is returned.

    Integer example:

    // calculate half the difference between the length
    // of the current line and the longest line
    function centerAlign(len, longest, line, lines) {
      return Math.floor((longest - len) / 2);
    }

    Object example:

    function centerAlign(len, longest, line, lines) {
      return {
        character: '\t',
        indent: Math.floor((longest - len) / 2),
        prefix: '',
      }
    }

    Usage examples

    Center align

    Using the centerAlign function from above:

    align(text, centerAlign);

    Would align this text:

    Lorem ipsum dolor sit amet
    consectetur adipiscin
    elit, sed do eiusmod tempor incididun
    ut labore et dolor
    magna aliqua. Ut enim ad mini
    veniam, quis

    Resulting in this:

         Lorem ipsum dolor sit amet,
            consectetur adipiscing
    elit, sed do eiusmod tempor incididunt
             ut labore et dolore
        magna aliqua. Ut enim ad minim
                 veniam, quis
    

    Customize

    If you wanted to add more padding on the left, just pass the number in the callback.

    For example, to add 4 spaces before every line:

    function centerAlign(len, longest, line, lines) {
      return 4 + Math.floor((longest - len) / 2);
    }

    Would result in:

             Lorem ipsum dolor sit amet,
                consectetur adipiscing
        elit, sed do eiusmod tempor incididunt
                 ut labore et dolore
            magna aliqua. Ut enim ad minim
                     veniam, quis
    

    Bullets

    align(text, function (len, max, line, lines) {
      return {prefix: ' - '};
    });

    Would return:

    - Lorem ipsum dolor sit amet,
    - consectetur adipiscing
    - elit, sed do eiusmod tempor incididunt
    - ut labore et dolore
    - magna aliqua. Ut enim ad minim
    - veniam, quis
    

    Different indent character

    align(text, function (len, max, line, lines) {
      return { 
        indent: Math.floor((max - len) / 2), 
        character: '~', 
      };
    });

    Would return

    ~~~~~Lorem ipsum dolor sit amet,
    ~~~~~~~~consectetur adipiscing
    elit, sed do eiusmod tempor incididunt
    ~~~~~~~~~ut labore et dolore
    ~~~~magna aliqua. Ut enim ad minim
    ~~~~~~~~~~~~~veniam, quis
    

    Related projects

    • center-align: Center-align the text in a string.
    • justify: Left or right (or both) justify text using a custom width and character
    • longest: Get the longest item in an array.
    • right-align: Right-align the text in a string.
    • repeat-string: Repeat the given string n times. Fastest implementation for repeating a string.
    • word-wrap: Wrap words to a specified length.

    Running tests

    Install dev dependencies:

    $ npm i -d && npm test

    Contributing

    Pull requests and stars are always welcome. For bugs and feature requests, please create an issue

    Author

    Jon Schlinkert

    License

    Copyright © 2015 Jon Schlinkert Released under the MIT license.


    This file was generated by verb-cli on June 09, 2015.

    Install

    npm i align-text@0.1.4

    Version

    0.1.4

    License

    MIT

    Last publish

    Collaborators

    • doowb
    • shinnn
    • jonschlinkert