RangeError:超出最大调用堆栈大小 [英] RangeError: Maximum call stack size exceeded

问题描述

我想这意味着有一个循环引用，但对于我的生活，我无法猜测如何修复它.

I guess this means there is a circular reference somehwere but for the life of me I can't guess how to fix it.

有人有什么想法吗?

http://plnkr.co/edit/aNcBcU?p=preview

检查 Chrome 中的调试控制台(例如)，您会看到错误.违规行是

Check the debug console in Chrome (for example) and you'll see the error. The offending line is

 scope.map = map;

scope.map 通过

scope.map is being "$watched" on the controller via

$scope.$watch("options.map", function (map) { ... }, true);

推荐答案

这是因为您比较对象是为了相等而不是为了参考.将您的 $watch 语句更改为:

It's because you're comparing for object for equality rather than for reference. Change your $watch statement to this:

$scope.$watch("options.map", function (map) {
    if (map === undefined) {
        alert("map has no value");
    } else {
        alert("map is defined");
    }
});

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