Sha256: eca15a03b07de45e47bf696594948cc77d134990a34d2ae72051f0f0b630d98f
Contents?: true
Size: 1.05 KB
Versions: 46
Compression:
Stored size: 1.05 KB
Contents
"use strict";
var isValue = require("../object/is-value")
, toNaturalNumber = require("../number/to-pos-integer");
var generated = Object.create(null), random = Math.random, uniqTryLimit = 100;
var getChunk = function () {
return random()
.toString(36)
.slice(2);
};
var getString = function (/* length */) {
var str = getChunk(), length = arguments[0];
if (!isValue(length)) return str;
while (str.length < length) str += getChunk();
return str.slice(0, length);
};
module.exports = function (/* options */) {
var options = Object(arguments[0]), length = options.length, isUnique = options.isUnique;
if (isValue(length)) length = toNaturalNumber(length);
var str = getString(length);
if (isUnique) {
var count = 0;
while (generated[str]) {
if (++count === uniqTryLimit) {
throw new Error(
"Cannot generate random string.\n" +
"String.random is not designed to effectively generate many short and " +
"unique random strings"
);
}
str = getString(length);
}
generated[str] = true;
}
return str;
};
Version data entries
46 entries across 46 versions & 3 rubygems