JavaScript: "Syntax error missing } after function body"

Question

好吧，你知道错误了，但我到底为什么会得到它？

在本地运行时我完全没有遇到任何错误，但是当我上传我的项目时却遇到了这个烦人的语法错误。我检查了 Firebug错误控制台，这没有帮助，因为它把我所有的源放在同一行，我已经通过 Lint 解析了它，它似乎也没有发现问题——我只是以某种方式以不同的方式格式化我的大括号我讨厌的；与声明在同一行，blugh。

function ToServer(cmd, data) {
    var xmlObj = new XMLHttpRequest();
    xmlObj.open('POST', 'handler.php', true);
    xmlObj.setRequestHeader('Content-type', 'application/x-www-form-urlencoded');
    xmlObj.send(cmd + data);
    xmlObj.onreadystatechange = function() {
        if(xmlObj.readyState === 4 && xmlObj.status === 200) {
            if(cmd == 'cmd=push') {
                document.getElementById('pushResponse').innerHTML = xmlObj.responseText;
            }
            if(cmd == 'cmd=pop') {
                document.getElementById('messages').innerHTML += xmlObj.responseText;
            }
            if(cmd == 'cmd=login') {
                if(xmlObj.responseText == 'OK') {
                    self.location = 'index.php';
                }
                else {
                    document.getElementById('response').innerHTML = xmlObj.responseText;
                }
            }
        }
    }
}

function Login() {
    // Grab username and password for login
    var uName = document.getElementById('uNameBox').value;
    var pWord = document.getElementById('pWordBox').value;
    ToServer('cmd=login', '&uName=' + uName + '&pWord=' + pWord);
}


// Start checking of messages every second
window.onload = function() {
    if(getUrlVars()['to'] != null) {
        setInterval(GetMessages(), 1000);
    }
}

function Chat() {
    // Get username from recipient box
    var user = document.getElementById('recipient').value;
    self.location = 'index.php?to=' + user;
}

function SendMessage() {
    // Grab message from text box
    var from = readCookie('privateChat');
    var to = getUrlVars()['to'];
    var msg = document.getElementById('msgBox').value;
    ToServer('cmd=push','&from=' + from + '&to=' + to + '&msg=' + msg);
    // Reset the input box
    document.getElementById('msgBox').value = "";
}

function GetMessages() {
    // Grab account hash from auth cookie
    var aHash = readCookie('privateChat');
    var to = getUrlVars()['to'];
    ToServer('cmd=pop','&account=' + aHash + '&to=' + to);
    var textArea = document.getElementById('messages');
    textArea.scrollTop = textArea.scrollHeight;
}

function readCookie(name) {
    var nameEQ = name + "=";
    var ca = document.cookie.split(';');
    for(var i=0;i < ca.length;i++) {
        var c = ca[i];
        while (c.charAt(0)==' ') c = c.substring(1,c.length);
        if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
    }
    return null;
}

function getUrlVars() {
    var vars = {};
    var parts = window.location.href.replace(/[?&]+([^=&]+)=([^&]*)/gi, function(m,key,value) {
        vars[key] = value;
    });
    return vars;
}

Answer 1

问题是您服务器上的脚本在一行中，并且您在其中有注释。 // 之后的代码将被视为注释。这就是原因。

function ToServer(cmd, data) { var xmlObj = new XMLHttpRequest(); xmlObj.open('POST', 'handler.php', true); xmlObj.setRequestHeader('Content-type', 'application/x-www-form-urlencoded'); xmlObj.send(cmd + data); xmlObj.onreadystatechange = function() { if(xmlObj.readyState === 4 && xmlObj.status === 200) {  if(cmd == 'cmd=push') {  document.getElementById('pushResponse').innerHTML = xmlObj.responseText;  }  if(cmd == 'cmd=pop') {  document.getElementById('messages').innerHTML += xmlObj.responseText;  }  if(cmd == 'cmd=login') {  if(xmlObj.responseText == 'OK') {   self.location = 'index.php';  }  else {   document.getElementById('response').innerHTML = xmlObj.responseText;  }  }   } };}function Login() { // Grab username and password for login var uName = document.getElementById('uNameBox').value; var pWord = document.getElementById('pWordBox').value; ToServer('cmd=login', '&uName=' + uName + '&pWord=' + pWord);}// Start checking of messages every secondwindow.onload = function() { if(getUrlVars()['to'] != null) { setInterval(GetMessages(), 1000); }}function Chat() { // Get username from recipient box var user = document.getElementById('recipient').value; self.location = 'index.php?to=' + user;}function SendMessage() { // Grab message from text box var from = readCookie('privateChat'); var to = getUrlVars()['to']; var msg = document.getElementById('msgBox').value; ToServer('cmd=push','&from=' + from + '&to=' + to + '&msg=' + msg); // Reset the input box document.getElementById('msgBox').value = "";}function GetMessages() { // Grab account hash from auth cookie var aHash = readCookie('privateChat'); var to = getUrlVars()['to']; ToServer('cmd=pop','&account=' + aHash + '&to=' + to); var textArea = document.getElementById('messages'); textArea.scrollTop = textArea.scrollHeight;}function readCookie(name) { var nameEQ = name + "="; var ca = document.cookie.split(';'); for(var i=0;i < ca.length;i++) { var c = ca[i]; while (c.charAt(0)==' ') c = c.substring(1,c.length); if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length); } return null;}function getUrlVars() { var vars = {}; var parts = window.location.href.replace(/[?&]+([^=&]+)=([^&]*)/gi, function(m,key,value) { vars[key] = value; }); return vars;}