Parse URL parameters

/**
 * Parse url parameters
 * @example ?id=12345&a=b
 * @return Object {id:12345,a:b}
 * / 
export function urlParse () {
    let url = window.location.search;
    let obj = {};
    let reg = /[?&][^?&]+=[^?&]+/g;
    let arr = url.match(reg);
    // ['?id=12345','&a:b']
    if (arr) {
        arr.forEach((item) => {
            let tempArr = item.substring(1).split('=');
            let key = decodeURIComponent(tempArr[0]);
            let val = decodeURIComponent(tempArr[1]);
            obj [key] = val;
        });
    }
    return obj;
}