JS get data

js obtain get data

Nowadays, the separation of front end and back end has become a trend , That is to say, many pages are linked externally Need Customize Verbal Page to set parameters , The effective method at present is get Parameters . Through custom get Parameter is encapsulated vue Other framework Provide page variable identification ！ Of course, you can also use routing .

function getPar(par){
    // Get current URL
    var local_url = document.location.href; 
    // Get what you want get Parameter position 
    var get = local_url.indexOf(par +"=");
    if(get == -1){
        return false;   
    }   
    // Intercepting string 
    var get_par = local_url.slice(par.length + get + 1);    
    // Determine if there is anything else in the intercepted string get Parameters 
    var nextPar = get_par.indexOf("&");
    if(nextPar != -1){
        get_par = get_par.slice(0, nextPar);
    }
    return get_par;
}

/-------------------- Realization 2( return $_GET object , Imitation PHP Pattern )----------------------/

var $_GET = (function(){
    var url = window.document.location.href.toString();
    var u = url.split("?");
    if(typeof(u[1]) == "string"){
        u = u[1].split("&");
        var get = {};
        for(var i in u){
            var j = u[i].split("=");
            get[j[0]] = j[1];
        }
        return get;
    } else {
        return {};
    }
})();