Merge pull request #613 from commenthol/pad

[FEATURE] pad - string padding

test/pad/pad.js

@@ -0,0 +1,3 @@
+const pad = (string, length = 8, char = ' ') =>
+  string.padStart((string.length + length) / 2, char).padEnd(length, char);
+module.exports = pad;

test/pad/pad.test.js

@@ -0,0 +1,13 @@
+const test = require('tape');
+const pad = require('./pad.js');
+
+test('Testing pad', (t) => {
+  //For more information on all the methods supported by tape
+  //Please go to https://github.com/substack/tape
+  t.true(typeof pad === 'function', 'pad is a Function');
+  t.equal(pad('cat'), '  cat   ', 'cat is padded on both sides');
+  t.equal(pad('cat').length, 8, 'length of string is 8');
+  t.equal(pad(String(42), 6, '0'), '004200', 'pads 42 with "0"');
+  t.equal(pad('foobar', 3), 'foobar', 'does not truncates if string exceeds length');
+  t.end();
+});