sparkline's Introduction

sparkline

A JavaScript implementation of spark.

Usage

Node

Install the module with: npm install --save sparkline

var sparkline = require('sparkline');
sparkline([1, 5, 22, 7, 9]);

Command line

Install the module globally with: npm install -g sparkline

$ sparkline 12 43 56 30 15
▁▅█▃▁
$ echo 21,45,6,25,19,15 | sparkline
▃█▁▄▃▂

Browser

Download the script file to your server, and add the script tag to your HTML file.

<script src="http://example.com/sparkline.js"></script>
<script>
  sparkline([8, 31, 5, 20, 24]);
</script>

Contributing

In lieu of a formal styleguide, take care to maintain the existing coding style. Add unit tests for any new or changed functionality. Lint and test your code using Grunt.

Release History

2017-06-23 v0.2.0 Add html option, and fix overflow bug.
2015-07-17 v0.1.2 Add min/max options
2013-06-01 v0.1.1 Support AMD and bower
2013-05-30 v0.1.0 First release.

License

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sparkline's Issues

Add option to allow wrapping ticks in 'span' with titles for values

Odd issue with certain values

Hey I am having an odd issue with certain values in sparklines.

The example below only prints one character, if I change the final value of the array to a smaller number it works fine. Any help would be greatly appreciated.

a = [764612.6875, 705419.9375, 1542929.125, 1188870.875, 826327.0625, 593933.625, 876544, 777557.3125, 1029475, 1480014.5, 730282.6875, 955979.0625, 899932.1875, 904396.8125, 1222970, 1281843.25, 875649.6875, 913141.75, 555765.75, 732132.6875, 1044323, 572648.125, 1291031.875, 1942828.375, 1156655.75, 1481093.125, 1225755.25, 665784.3125, 1408389.125, 1055218.375, 638983.875, 823773.875, 1096795.375, 831556.25, 653557.75, 1001308.1875, 652451.8125, 164795.734375, 1461432.375, 927211.5, 1084151.625, 1101910.875, 705454.0625, 615452.3125, 946508.9375, 748625.9375, 609846.625, 946947.4375, 714622.3125, 616360.25, 956573, 1208802.625, 1151489.875, 1724761.25, 850773.3125, 864556.375, 1299271.625, 878407.6875, 807444.5, 1050712.75, 49311764, 101003032, 105960536, 109664921];
console.log(sparkline(a));

Output: ▁

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