在使用控制台之前，将以下内容粘贴到JavaScript的顶部:

/**
 * Protect window.console method calls, e.g. console is not defined on IE
 * unless dev tools are open, and IE doesn't define console.debug
 * 
 * Chrome 41.0.2272.118: debug,error,info,log,warn,dir,dirxml,table,trace,assert,count,markTimeline,profile,profileEnd,time,timeEnd,timeStamp,timeline,timelineEnd,group,groupCollapsed,groupEnd,clear
 * Firefox 37.0.1: log,info,warn,error,exception,debug,table,trace,dir,group,groupCollapsed,groupEnd,time,timeEnd,profile,profileEnd,assert,count
 * Internet Explorer 11: select,log,info,warn,error,debug,assert,time,timeEnd,timeStamp,group,groupCollapsed,groupEnd,trace,clear,dir,dirxml,count,countReset,cd
 * Safari 6.2.4: debug,error,log,info,warn,clear,dir,dirxml,table,trace,assert,count,profile,profileEnd,time,timeEnd,timeStamp,group,groupCollapsed,groupEnd
 * Opera 28.0.1750.48: debug,error,info,log,warn,dir,dirxml,table,trace,assert,count,markTimeline,profile,profileEnd,time,timeEnd,timeStamp,timeline,timelineEnd,group,groupCollapsed,groupEnd,clear
 */
(function() {
  // Union of Chrome, Firefox, IE, Opera, and Safari console methods
  var methods = ["assert", "cd", "clear", "count", "countReset",
    "debug", "dir", "dirxml", "error", "exception", "group", "groupCollapsed",
    "groupEnd", "info", "log", "markTimeline", "profile", "profileEnd",
    "select", "table", "time", "timeEnd", "timeStamp", "timeline",
    "timelineEnd", "trace", "warn"];
  var length = methods.length;
  var console = (window.console = window.console || {});
  var method;
  var noop = function() {};
  while (length--) {
    method = methods[length];
    // define undefined methods as noops to prevent errors
    if (!console[method])
      console[method] = noop;
  }
})();

函数闭包包装器的作用域是不定义任何变量。这可以防止未定义的控制台和未定义的console.debug(以及其他缺失的方法)。

编辑:我注意到HTML5 Boilerplate在其js/plugins.js文件中使用了类似的代码，如果你正在寻找一个将(可能)保持最新的解决方案。

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。

有时控制台可以在IE8/9中工作，但在其他时候会失败。这种不稳定的行为取决于你是否打开了开发工具，并在stackoverflow问题中描述了IE9是否支持console.log，这是一个真实的函数吗?

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。

为了更健壮的解决方案，使用下面的代码(取自twitter的源代码):

// Avoid `console` errors in browsers that lack a console.
(function() {
    var method;
    var noop = function () {};
    var methods = [
        'assert', 'clear', 'count', 'debug', 'dir', 'dirxml', 'error',
        'exception', 'group', 'groupCollapsed', 'groupEnd', 'info', 'log',
        'markTimeline', 'profile', 'profileEnd', 'table', 'time', 'timeEnd',
        'timeStamp', 'trace', 'warn'
    ];
    var length = methods.length;
    var console = (window.console = window.console || {});

    while (length--) {
        method = methods[length];

        // Only stub undefined methods.
        if (!console[method]) {
            console[method] = noop;
        }
    }
}());

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,
    }
};