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Should I use JSLint or JSHint JavaScript validation? [closed]
...gress on, it's assisting me to write better JavaScript - in particular in working with the Jquery library.
8 Answers
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How do I test a private function or a class that has private methods, fields or inner classes?
... unit test (using xUnit) a class that has internal private methods, fields or nested classes? Or a function that is made private by having internal linkage ( static in C/C++) or is in a private ( anonymous ) namespace?
...
Python exit commands - why so many and when should each be used?
It seems that python supports many different commands to stop script execution. The choices I've found are: quit() , exit() , sys.exit() , os._exit()
...
CSS Input Type Selectors - Possible to have an “or” or “not” syntax?
...visibility: hidden;
}
<p>If <code>:not()</code> is supported, you'll only see the checkbox.</p>
<ul>
<li>text: (<input type="text">)</li>
<li>password (<input type="password">)</li> ...
php is null or empty?
...
What you're looking for is:
if($variable === NULL) {...}
Note the ===.
When use ==, as you did, PHP treats NULL, false, 0, the empty string, and empty arrays as equal.
...
Should I use Vagrant or Docker for creating an isolated environment? [closed]
I use Ubuntu for development and deployment and have a need for creating an isolated environment.
10 Answers
...
Maximum number of items that can be serialized or deserialized in an o...
报错消息：
Maximum number of items that can be serialized or deserialized in an object graph is '65536'. Change the object graph or increase the MaxItemsInObjectGraph quota.
修改如下相应的WCF配置，即可解决。
服务器端：
<system.serviceModel>
<beh...
【解决】Argument to MakeInstant should have form MM/dd/YYYY hh:mm:ss, ...
转会员提问：
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【解决】
关注 计时器的 “由文本建时间点” 方法，传入的文本格式不对导致。
根据报错信息或查看文档，格式必须是 MM/dd/YYYY hh:mm:ss, or MM/dd/YYYY or hh:mm
Mongoose's find method with $or condition does not work properly
...am' as ObjectId type. To avoid exception,
// the 'param' must consist of more than 12 characters.
User.find( { $or:[ {'_id':objId}, {'name':param}, {'nickname':param} ]},
function(err,docs){
if(!err) res.send(docs);
});
...
What does the construct x = x || y mean?
...f you call the method with no arguments it will use a default value of "Error".
It's shorthand for writing:
if (!title) {
title = "Error";
}
This kind of shorthand trick with boolean expressions is common in Perl too. With the expression:
a OR b
it evaluates to true if either a or b is true...