Provides utility functions.
此脚本不应直接安装。它是供其他脚本使用的外部库，要使用该库请加入元指令 // @require https://update.greasyfork.org/scripts/31227/204776/Utilities.js
/**
* @author Anthony Pizzimenti
* @desc Checks whether a parameter exists and is of the desired type.
* @param {*} param Paramter to check.
* @param {string} type Desired type.
* @returns {boolean}
* @private
*/
function _paramExist (param, type) {
return typeof param === type && param !== undefined && param !== null;
}
/**
* @author Anthony Pizzimenti
* @desc Creates an absolute URL from the provided path and root.
* @param {string} root Root URL.
* @param {string} path Root-relative path.
* @returns {*}
*/
function absurl (root, path) {
if (_paramExist(root, "string") && _paramExist(path, "string")) {
if (root[root.length - 1] === "/") {
return root + path;
} else {
return root + "/" + path;
}
}
return null;
}