将函数名称作为参数传递给另一个函数

Question

我在.aspx页面上从客户端调用Web服务,我想调用一个关于此服务成功的函数.

函数名称将作为参数传递给此函数,该函数将动态更改.

我这样传递:

function funName parm1, parm2, onSucceedCallFuntion

function onSucceedCallFuntion(result)
//doing something here.    

也许是因为它是一个字符串是无法调用"成功"函数的原因

function funName(parm1, par2, onSucceedFunName) {
    $.ajax({
        url: "../WebServices/ServiceName.asmx/ServiceFunName",
        data: JSON.stringify({
            parm1: parm1,
            par2: par2
        }), // parameter map  type: "POST", // data has to be POSTED                
        contentType: "application/json",
        dataType: "json",
        success: onSucceedFunName,
    });

function onSucceedFunName() {}

Answer 1

如果您将函数的名称作为字符串传递,您可以尝试这样做:

window[functionName]();

但这假设功能在全球范围内.另一种更好的方法是只传递函数本身:

function onSuccess() {
    alert('Whoopee!');
}

function doStuff(callback) {
    /* do stuff here */
    callback();
}

doStuff(onSuccess); /* note there are no quotes; should alert "Whoopee!" */

编辑

如果需要将变量传递给函数,可以将它们与函数一起传递.这就是我的意思:

// example function
function greet(name) {
    alert('Hello, ' + name + '!');
}

// pass in the function first,
// followed by all of the variables to be passed to it
// (0, 1, 2, etc; doesn't matter how many)
function doStuff2() {
    var fn = arguments[0],
        vars = Array.prototype.slice.call(arguments, 1);
    return fn.apply(this, vars);
}

// alerts "Hello, Chris!"
doStuff2(greet, 'Chris');