这段代码将停止当前窗口中所有javascript的执行:

(,);

例子

console.log('READY!'); setTimeout(()=>{ /* animation call */ div.className = "anim"; console.log('SET!'); setTimeout(()=>{ setTimeout(()=>{ console.log('this code will never be executed'); },1000); console.log('GO!'); /* BOMB */ for(;;); console.log('this code will never be executed'); },1000); },1000); #div { position: fixed; height: 1rem; width: 1rem; left: 0rem; top: 0rem; transition: all 5s; background: red; } /* this <div> will never reached the right bottom corner */ #div.anim { left: calc(100vw - 1rem); top: calc(100vh - 1rem); } <div id="div"></div>

JavaScript相当于PHP的die。顺便说一句，它只是调用exit()(谢谢splattne):

function exit( status ) {
    // http://kevin.vanzonneveld.net
    // +   original by: Brett Zamir (http://brettz9.blogspot.com)
    // +      input by: Paul
    // +   bugfixed by: Hyam Singer (http://www.impact-computing.com/)
    // +   improved by: Philip Peterson
    // +   bugfixed by: Brett Zamir (http://brettz9.blogspot.com)
    // %        note 1: Should be considered expirimental. Please comment on this function.
    // *     example 1: exit();
    // *     returns 1: null

    var i;

    if (typeof status === 'string') {
        alert(status);
    }

    window.addEventListener('error', function (e) {e.preventDefault();e.stopPropagation();}, false);

    var handlers = [
        'copy', 'cut', 'paste',
        'beforeunload', 'blur', 'change', 'click', 'contextmenu', 'dblclick', 'focus', 'keydown', 'keypress', 'keyup', 'mousedown', 'mousemove', 'mouseout', 'mouseover', 'mouseup', 'resize', 'scroll',
        'DOMNodeInserted', 'DOMNodeRemoved', 'DOMNodeRemovedFromDocument', 'DOMNodeInsertedIntoDocument', 'DOMAttrModified', 'DOMCharacterDataModified', 'DOMElementNameChanged', 'DOMAttributeNameChanged', 'DOMActivate', 'DOMFocusIn', 'DOMFocusOut', 'online', 'offline', 'textInput',
        'abort', 'close', 'dragdrop', 'load', 'paint', 'reset', 'select', 'submit', 'unload'
    ];

    function stopPropagation (e) {
        e.stopPropagation();
        // e.preventDefault(); // Stop for the form controls, etc., too?
    }
    for (i=0; i < handlers.length; i++) {
        window.addEventListener(handlers[i], function (e) {stopPropagation(e);}, true);
    }

    if (window.stop) {
        window.stop();
    }

    throw '';
}

If you're looking for a way to forcibly terminate execution of all Javascript on a page, I'm not sure there is an officially sanctioned way to do that - it seems like the kind of thing that might be a security risk (although to be honest, I can't think of how it would be off the top of my head). Normally in Javascript when you want your code to stop running, you just return from whatever function is executing. (The return statement is optional if it's the last thing in the function and the function shouldn't return a value) If there's some reason returning isn't good enough for you, you should probably edit more detail into the question as to why you think you need it and perhaps someone can offer an alternate solution.

注意，在实践中，大多数浏览器的Javascript解释器在遇到错误时会简单地停止运行当前脚本。所以你可以做一些事情，比如访问一个未设置变量的属性:

function exit() {
    p.blah();
}

它可能会中止脚本。但你不应该指望它，因为它根本不是标准的，而且它看起来真的是一个糟糕的做法。

编辑:好吧，也许这不是一个很好的答案Ólafur的光。尽管他链接到的die()函数基本上实现了我的第二段，即它只是抛出一个错误。

把“”;

是对这个概念的误用，但可能是唯一的选择。是的，您必须重置所有事件侦听器，就像接受的答案提到的那样。如果我是对的，你还需要一个单一的入口。

在它的顶部:你想要一个通过电子邮件向你报告的页面，你可以使用例如Raven/Sentry。但这意味着，你给自己制造了假阳性。在这种情况下，您还需要更新默认处理程序以过滤掉此类事件，或者在Sentry的仪表板上将此类事件设置为忽略。

window.stop ();

这在页面加载期间不起作用。它也会停止对页面的解码。所以你不能用它来为用户提供网页的无javascript变体。

调试器;

仅在调试器打开时停止执行。工作很好，但不能交付。

带有函数的Wrapp

(function(){
alert('start')

return;
alert('no exec')
})

我知道这是旧的，但如果你想要一个类似的PHP die()函数，你可以这样做:

function die(reason) {
    throw new Error(reason);
}

用法:

console.log("Hello");
die("Exiting script..."); // Kills script right here
console.log("World!");

上面的例子只打印“Hello”。