//@ts-check
class Options {
/**
* A helper method to extend the default options with user supplied ones.
*/
static extend() {
let that = this;
let extended = {};
let deep = false;
let i = 0;
let length = arguments.length;
if (Object.prototype.toString.call(arguments[0]) === '[object Boolean]') {
deep = arguments[0];
i++;
}
let merge = function (obj) {
for (var prop in obj) {
if (Object.prototype.hasOwnProperty.call(obj, prop)) {
if (deep && Object.prototype.toString.call(obj[prop]) === '[object Object]') {
extended[prop] = that.extend(true, extended[prop], obj[prop]);
} else {
extended[prop] = obj[prop];
}
}
}
};
for (; i < length; i++) {
let obj = arguments[i];
merge(obj);
}
return extended;
}
}
module.exports = Options;