在TypeScript中控制台的存根:

if (!window.console) {
console = {
    assert: () => undefined,
    clear: () => undefined,
    count: () => undefined,
    debug: () => undefined,
    dir: () => undefined,
    dirxml: () => undefined,
    error: () => undefined,
    group: () => undefined,
    groupCollapsed: () => undefined,
    groupEnd: () => undefined,
    info: () => undefined,
    log: () => undefined,
    msIsIndependentlyComposed: (e: Element) => false,
    profile: () => undefined,
    profileEnd: () => undefined,
    select: () => undefined,
    time: () => undefined,
    timeEnd: () => undefined,
    trace: () => undefined,
    warn: () => undefined,
    }
};

要在IE中调试，请查看这个log4javascript

另一种选择是typeof操作符:

if (typeof console == "undefined") {
    this.console = {log: function() {}};
}

还有一种替代方法是使用日志库，比如我自己的log4javascript。

您可以在Firefox中直接使用console.log(…)，但不能在ie中使用。在ie中，你必须使用window.console。

console = console || { 
    debug: function(){}, 
    log: function(){}
    ...
}

我只使用console.log在我的代码。所以我包括一个很短的2眼线

var console = console || {};
console.log = console.log || function(){};