--- /dev/null
+var makeString = require('./helper/makeString');
+var strRepeat = require('./helper/strRepeat');
+
+module.exports = function pad(str, length, padStr, type) {
+ str = makeString(str);
+ length = ~~length;
+
+ var padlen = 0;
+
+ if (!padStr)
+ padStr = ' ';
+ else if (padStr.length > 1)
+ padStr = padStr.charAt(0);
+
+ switch (type) {
+ case 'right':
+ padlen = length - str.length;
+ return str + strRepeat(padStr, padlen);
+ case 'both':
+ padlen = length - str.length;
+ return strRepeat(padStr, Math.ceil(padlen / 2)) + str + strRepeat(padStr, Math.floor(padlen / 2));
+ default: // 'left'
+ padlen = length - str.length;
+ return strRepeat(padStr, padlen) + str;
+ }
+};