javascript 语法错误：缺少变量名
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SyntaxError: missing variable name
提问by Danny Beckett
I'm running JavaScript Linton a project to check for common programming errors. I'm hitting this error:
我正在一个项目上运行JavaScript Lint来检查常见的编程错误。我遇到了这个错误：
SyntaxError:missing variable name
语法错误：缺少变量名
On this line:
在这一行：
var char, font;
From Googling, I've found that that error is shown when a reserved word is used as a variable name; but judging by MDN's list, neither charnor fontis reserved.
从谷歌搜索中，我发现当保留字用作变量名时会显示该错误；但从MDN 的列表来看，既不保留char也不font保留。
What is the problem here?
这里有什么问题？
回答by Danny Beckett
Never mind, I found the answer by reading What is the 'char' keyword used for?.
没关系，我通过阅读什么是'char'关键字用于？.
Apparently charwas reserved in ECMA 3, but removed as a reserved keyword in ECMA 5.
显然char在 ECMA 3 中保留，但在 ECMA 5 中作为保留关键字删除。
I've renamed my varnow, to prevent any potential issues arising with old implementations.
我已经重命名了我的var现在，以防止旧实现出现任何潜在问题。
回答by Andrew
According to http://www.quackit.com/javascript/javascript_reserved_words.cfm
根据http://www.quackit.com/javascript/javascript_reserved_words.cfm
charis a keyword reserved by JavaScript.
char是 JavaScript 保留的关键字。
I think fontis fine.
我觉得font还好。
回答by user66001
As this question gets returned on the first page of a google search for JS Missing variable name, and I feel it is the most appropriate out of the other SO questions which mention this error, am going to detail another reason for this error here:
由于此问题在 google 搜索的第一页上返回JS Missing variable name，并且我觉得它是提及此错误的其他 SO 问题中最合适的，因此我将在此处详细说明此错误的另一个原因：
When using bookmarklet code that has %20HTMLEntity's in place of spaces, in (for example) Firefox's Scratchpad.
在（例如）Firefox 的 Scratchpad 中使用具有%20HTMLEntity 代替空格的书签代码时。
回答by ratskin
I solved this by making these changes to my code.
我通过对我的代码进行这些更改来解决这个问题。
I had:
我有：
var a = 1,
b = 2;
I changed it to this (by mistake), which cause the error:
我把它改成了这个（错误地），这导致了错误：
var a = 1,
var b = 2;
I resolved it with this:
我用这个解决了它：
var a = 1;
var b = 2;
