你能在不使用 ' 或 " 引号的情况下创建 JavaScript 字符串吗？
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Can you create a JavaScript string without using ' or " quotes?
提问by Jeff
I have a JS file with some XML in it, where the XML is supposed to get converted to a word by the server.
我有一个包含一些 XML 的 JS 文件，其中 XML 应该被服务器转换为一个单词。
E.g.
例如
var ip = "<lang:cond><lang:when test="$(VAR{'ip_addr'})">$(VAR{'ip_addr'})</lang:when></lang:cond>";
This gets converted to:
这将转换为：
var ip = "192.168.0.0";
However, in case the server doesn't work as intended, I don't want there to be a syntax error, and this is VERY important. Currently there would be a syntax error because the language uses both types of quotes. I can't think of a way to get around this, but perhaps there's another way to do quotes in JavaScript? Or to create a string?
但是，如果服务器无法按预期工作，我不希望出现语法错误，这非常重要。当前会出现语法错误，因为该语言使用两种类型的引号。我想不出解决这个问题的方法，但也许还有另一种方法可以在 JavaScript 中引用？或者创建一个字符串？
For example, in Python I'd use triple quotes:
例如，在 Python 中我会使用三引号：
ip = """<lang:cond><lang:when test="$(VAR{'ip_addr'})">$(VAR{'ip_addr'})</lang:when></lang:cond>"""
Anyone have a bright idea?
有人有一个好主意吗？
回答by Josh
I have had to create strings without quotes for a project as well. We were delivering executable client javascript to the browser for an internal website. The receiving end strips double and single quotes when displayed. One way I have found to get around quotes is by declaring my string as a regular expression.
我还必须为项目创建没有引号的字符串。我们正在向内部网站的浏览器提供可执行的客户端 javascript。接收端显示时去掉双引号和单引号。我发现绕过引号的一种方法是将我的字符串声明为正则表达式。
var x = String(/This contains no quotes/);
x = x.substring(1, x.length-1);
x;
回答by PiTheNumber
Using Stringprototype:
使用字符串原型：
String(/This contains no quotes/).substring(1).slice(0,-1)
Using String.fromCharCode
使用String.fromCharCode
String.fromCharCode(72,69,76,76,79)
Generate Char Codes for this:
为此生成字符代码：
var s = "This contains no quotes";
var result = [];
for (i=0; i<s.length; i++)
{
result.push(s.charCodeAt(i));
}
result
回答by www139
I was looking for a solution to the same problem. Someone suggested looking at https://developer.mozilla.org/en/docs/Web/JavaScript/Reference/template_stringswhich proved helpful. After reading about half the article, it stated that you can create strings with the backward tick character. (`)
我正在寻找相同问题的解决方案。有人建议查看https://developer.mozilla.org/en/docs/Web/JavaScript/Reference/template_strings，这证明很有帮助。在阅读了大约一半的文章后，它说您可以使用向后的刻度字符创建字符串。(`)
Try this :)
尝试这个 ：）
document.getElementById('test').innerHTML = `'|'|'|"|"`<div id="test" style="font-size:3em;"></div>回答by ziesemer
In JavaScript, you can escape either type of quote with a \.
在 JavaScript 中，您可以使用\.
For example:
例如：
var str = "This is a string with \"embedded\" quotes.";
var str2 = 'This is a string with \'embedded\' quotes.';
In particular, your block of JavaScript code should be converted to:
特别是，您的 JavaScript 代码块应转换为：
var ip = "<lang:cond><lang:when test=\"$(VAR{'ip_addr'})\">$(VAR{'ip_addr'})</lang:when></lang:cond>";
In general, I always prefer to escape the quotes instead of having to constantly switch quote types, depending upon what type of quotes may be used within.
一般来说，我总是喜欢对引号进行转义，而不是不断地切换引号类型，这取决于其中可能使用的引号类型。
回答by buley
You can't create a string without using a single or double quote, as even calling the String()prototype object directly still requires you to pass it the string.
不使用单引号或双引号就不能创建字符串，因为即使String()直接调用原型对象仍然需要您将字符串传递给它。
Inside XML you would use CDATA, but inside JS you'll have to just escape the '\"strings\"'"\'appropriately\'"
在 XML 中，您将使用 CDATA，但在 JS 中，您必须转义 '\"strings\"'"\'appropriately\'"
