无法在google map api v3中调用方法getPosition [英] Cannot call method getPosition in google map api v3

问题描述

我想在此代码中使用方法getPosition：

I want to use method getPosition in this code :

alert("Tap location in this map");
google.maps.event.addListener(map, 'click', function(event) {
    mArray[count] = new google.maps.Marker({
        position: event.latLng,
        map: map
    });
});
mArray[count].getPosition();

但我无法调用getPosition。

But I cannot call getPosition.

Uncaught TypeError: Cannot call method 'getPosition' of undefined

有人可以解释吗？谢谢

Can someone explain it ? Thanks

推荐答案

您的问题的方式是，mArray [count] .getPosition（）在click事件运行之前执行它已被定义），该代码不会执行，直到点击发生。这应该工作（但不知道为什么你想这样做）：

The way your question has it, mArray[count].getPosition() executes before the click event runs (but after it has been defined), that code doesn't execute until the 'click' happens. This should work (but not sure why you would want to do it this way):

alert("Tap location in this map");
google.maps.event.addListener(map, 'click', function(event) {
    mArray[count] = new google.maps.Marker({
        position: event.latLng,
        map: map
    });
    mArray[count].getPosition();
});

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