Question

如何在以下函数中的代码执行完毕后调用一个只显示警告框的函数？这是代码运行的fiddle，现在我希望能够在runArray函数中完成代码之后调用下面的附加函数“isComplete”。

function runArray(arr, fn, delay) {
var index = 0;
var cnt = 0;
var i = 0;

// Called once for each array element    
function next() {
    if (index >= arr.length) {
        return;
    }

    cnt = +arr[index];
    i = 0;
    loop();
}

// Represents a single iteration of what was previously a for loop
// Will either schedule the next iteration or move to the next element
function loop() {
    if (i < cnt) {
        fn(index, i++);
        setTimeout(loop, delay); // delay before next iteration
    }
    else {
        ++index;
        setTimeout(next, delay); // delay before moving to next element
    }
}

if (arr.length) {
    next();
}
}

function isComplete(){
alert('completed!');
}

Answer 1

尝试添加额外参数fnComplete并将其传递给该函数。然后在return语句之前调用它：

function runArray(arr, fn, delay, fnComplete) {
    var index = 0;
    var cnt = 0;
    var i = 0;

    // Called once for each array element    
    function next() {
        if (index >= arr.length) {
            fnComplete();
            return;
        }

调用该函数：

runArray(theArray, theFunction, 100, isComplete);

如何在执行其他函数中的代码后调用函数

1 个答案: