为什么javascriptmvc应用程序中js表达式末尾没有分号？
我开始学习 javascriptmvc，在代码示例中，我看到表达式末尾没有分号的代码。这取决于自动分号插入还是我遗漏了一些东西？代码示例如下：
$.Controller("Contacts.Controller", {
init: function(){
this.params = new Mxui.Data();
$("#category .list_wrapper").mxui_data_list({
model : Contacts.Models.Category,
show : "//contacts/views/categoryList",
create: "//contacts/views/categoryCreate"
}) // <------ NO SEMICOLON
$("#location .list_wrapper").mxui_data_list({
model : Contacts.Models.Location,
show : "//contacts/views/categoryList",
create: "//contacts/views/categoryCreate"
}) // <------ NO SEMICOLON
$("#company .list_wrapper").mxui_data_list({
model : Contacts.Models.Company,
show : "//contacts/views/companyList",
create: "//contacts/views/companyCreate"
}) // <------ NO SEMICOLON
// etc...
}
}) // <------ NO SEMICOLON
I am starting to learn javascriptmvc, and in code samples, I see code without semicolons at the end of expressions. Does this count on automatic semicolon insertion or am I missing something? Code example below:
$.Controller("Contacts.Controller", {
init: function(){
this.params = new Mxui.Data();
$("#category .list_wrapper").mxui_data_list({
model : Contacts.Models.Category,
show : "//contacts/views/categoryList",
create: "//contacts/views/categoryCreate"
}) // <------ NO SEMICOLON
$("#location .list_wrapper").mxui_data_list({
model : Contacts.Models.Location,
show : "//contacts/views/categoryList",
create: "//contacts/views/categoryCreate"
}) // <------ NO SEMICOLON
$("#company .list_wrapper").mxui_data_list({
model : Contacts.Models.Company,
show : "//contacts/views/companyList",
create: "//contacts/views/companyCreate"
}) // <------ NO SEMICOLON
// etc...
}
}) // <------ NO SEMICOLON
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评论（3）
在 JavaScript 中，很多分号都是可选的，但建议使用以避免混淆
https://mislav.net/2010 /05/分号/
A lot of semicolons are optional in javascript, though recommended to avoid confusion
https://mislav.net/2010/05/semicolons/
JavaScript 可以容忍缺少分号，而其他语言则不然。但是，建议在您指出的地方使用分号。
如果您运行通过 JSLint 给出的代码，它会抛出一大堆警告，包括抱怨那些缺少的分号。
JSLint 是一个工具，用于告诉您代码中的某些内容，这些内容可能不是语法错误，但可能会导致问题。它通常会引发很多错误，即使对于编写相对良好的代码也是如此，但它对于找出您应该修复的问题很有帮助。
我想说，由于缺少分号，这些代码示例写得很差。
Javascript can be forgiving about the lack of a semicolon in ways that other languages are not. However a semicolon is recommended where you've pointed them out.
If you run the code you've given through JSLint, it throws up a whole stack of warnings, including complaining about those missing semicolons.
JSLint is a tool for telling you about things in your code which may not be syntax errors but which could cause problems. It generally throws up a lot of errors, even for relatively well written code, but it is good for picking up things which you should fix.
I would say that those code samples are poorly written because of the missing semi-colons.
仅在内联事件处理程序中分号是必需的。
大多数其他地方，换行就足够了。下面是一个例子，说明它还不够：
为什么行尾需要分号？
正如所指出的，如果您想缩小脚本，请不要省略分号。
Semicolons are only mandatory in inline event handlers.
MOST anywhere else, a linefeed is enough. Here is an example of where it is not enough:
Why is a semicolon required at end of line?
And as pointed out, do not leave out semicolons if you want to minify your scripts.