如何在 javascript 中修复此错误“缺少；声明之前”？
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How can I fix this error "missing; before statement" in javascript?
提问by faressoft
How can I fix this error "missing; before statement" in javascript ?
如何在 javascript 中修复此错误“缺少；声明之前”？
My HTML Page : http://etrokny.faressoft.com
我的 HTML 页面：http: //etrokny.faressoft.com
My Javascript Code : http://etrokny.faressoft.com/javascript.php
我的 Javascript 代码：http: //etrokny.faressoft.com/javascript.php
采纳答案by Tom van der Woerdt
When assigning a function to a variable, you need a semicolon after the function.
将函数赋值给变量时，函数后需要一个分号。
Example: var func = function() { return false; };
例子： var func = function() { return false; };
回答by Jordi
Put a semicolon after all statements. JavaScript does it automatically for you when you "forget" one at the end of a line**, but since you used a tool to make everything fit on one line, this doesn't happen anymore.
在所有语句后放一个分号。当您“忘记”一行末尾的内容时，JavaScript 会自动为您执行此操作**，但是由于您使用了一种工具将所有内容都放在一行中，因此这种情况不会再发生了。
** it should also be happening when a statement is followed by a }, but it's just bad practice to rely on it. I would always write all semicolons myself.
** 当语句后跟 a 时也应该发生这种情况}，但依赖它是不好的做法。我总是自己写所有的分号。
Actually, you know what, since it's so easy, I did it for you:
事实上，你知道吗，既然它如此简单，我为你做了：
function getSelected() {
var selText;
var iframeWindow = window;
if (iframeWindow.getSelection) {
selText = iframeWindow.getSelection() + "";
} else if (iframeWindow.document.selection) {
selText = iframeWindow.document.selection.createRange().text;
}
selText = $.trim(selText);
if (selText != "") {
return selText;
} else {
return null;
}
}
$(document).ready(function () {
function scan_selectedText() {
if (getSelected() == null) {
return false;
}
if (getSelected().length < 25) {
return false;
}
$(document)[0].oncontextmenu = function () {
return false;
};
var result = true;
var selected_Text = getSelected();
selected_Text = selected_Text.replace(/ {2,}/g, ' ').replace(/\s{2,}/g, ' ');
$('#content .para').each(function () {
var accepted_text = $.trim($(this).text());
accepted_text = accepted_text.replace(/ {2,}/g, ' ').replace(/\s{2,}/g, ' ');
if (accepted_text.search(selected_Text) > -1) {
result = false;
}
});
var AllAccepted = "";
$('#content .para').each(function () {
var correntDiv = $.trim($(this).text()).replace(/ {2,}/g, ' ').replace(/\s{2,}/g, ' ');
AllAccepted = AllAccepted + correntDiv + " ";
});
if ($.trim(AllAccepted).search(selected_Text) > -1) {
return false;
}
if (!result) {
return false;
}
var body = $.trim($('body').text());
body = body.replace(/ {2,}/g, ' ').replace(/\s{2,}/g, ' ');
var bodyWithoutDivs = body;
$('#content').each(function () {
var correntDiv = new RegExp($.trim($(this).text()).replace(/ {2,}/g, ' ').replace(/\s{2,}/g, ' '), "");
bodyWithoutDivs = bodyWithoutDivs.replace(correntDiv, '');
});
if (bodyWithoutDivs.search(selected_Text) > -1) {
return false;
}
if (body == selected_Text) {
return true;
}
return true;
}
$(document).mousedown(function (key) {
if (key.button == 2) {
if (scan_selectedText() == true) {
$(document)[0].oncontextmenu = function () {
return false;
};
} else {
$(document)[0].oncontextmenu = function () {
return true;
};
}
}
});
var isCtrl = false;
$(document).keyup(function (e) {
if (e.which == 17) isCtrl = false;
}).keydown(function (e) {
if (e.which == 17) isCtrl = true;
if (e.which == 67 && isCtrl == true) {
$("#content2").animate({
opacity: 0
}, 500).animate({
opacity: 1
}, 500);
if (scan_selectedText() == true) {
return false;
} else {
return true;
}
}
});
document.onkeypress = function (evt) {
if (evt.ctrlKey == true && evt.keyCode == 67) {
$("#content2").animate({
opacity: 0
}, 500).animate({
opacity: 1
}, 500);
if (scan_selectedText() == true) {
return false;
} else {
return true;
}
}
};
$('*').bind('copy', function (key) {
if (scan_selectedText() == true) {
return false;
} else {
return true;
}
});
});
回答by snarky
First thing, start with the raw human-written version of your javascript, you know, the unminimized non-machine-generated version
首先，从你的 javascript 的原始人工编写版本开始，你知道，未最小化的非机器生成版本
After you've fixed you've made sure it is free from syntax errors .... and you minimize it, don't make a mistake when copy/pasting
修复后，您已确保它没有语法错误.... 并将其最小化，复制/粘贴时不要出错
