大约有 40,700 项符合查询结果（耗时：0.0358秒） [XML]
Why do we usually use || over |? What is the difference?
... wondering why we usually use logical OR || between two booleans not bitwise OR | , though they are both working well.
2...
How to convert a string to an integer in JavaScript?
...er ([IE8, Firefox 20, Chrome 22 and older][1])
unary plus
if your string is already in the form of an integer:
var x = +"1000";
if your string is or might be a float and you want an integer:
var x = Math.floor("1000.01"); //floor automatically converts string to number
or, if you're going to...
List passed by ref - help me explain this behaviour
...
You are passing a reference to the list, but your aren't passing the list variable by reference - so when you call ChangeList the value of the variable (i.e. the reference - think "pointer") is copied - and changes to the value of the parameter inside ChangeLis...
Fully backup a git repo?
Is there a simple way to backup an entire git repo including all branches and tags?
13 Answers
...
Difference between Pig and Hive? Why have both? [closed]
...
Check out this post from Alan Gates, Pig architect at Yahoo!, that compares when would use a SQL like Hive rather than Pig. He makes a very convincing case as to the usefulness of a procedural language like Pig (vs. declarative SQL) and...
How to send an object from one Android Activity to another using Intents?
...
If you're just passing objects around then Parcelable was designed for this. It requires a little more effort to use than using Java's native serialization, but it's way faster (and I mean way, WAY faster).
From the docs, a simple example for how to implement is:
// simple class that just has on...
What is the behavior difference between return-path, reply-to and from?
...
Let's start with a simple example. Let's say you have an email list, that is going to send out the following RFC2822 content.
From: <coolstuff@mymailinglist.com>
To: <you@yourcompany.com>
Subject: Super simple email
Reply-To: <coolstuff-threadId=123@mymailinglist.com>...
How to find the nearest parent of a Git branch?
Let's say I have the following local repository with a commit tree like this:
20 Answers
...
Is Task.Result the same as .GetAwaiter.GetResult()?
...the point of using either of those when it's async? The 100x better option is to use await.
Also, you're not meant to use GetResult(). It's meant to be for compiler use only, not for you. But if you don't want the annoying AggregateException, use it.
...
What is your preferred php deployment strategy? [closed]
...
For PHP, SVN with Phing build scripts are the way to go. Phing is similar to ANT but is written in PHP, which makes it much easier for PHP developers to modify for their needs.
Our deployment routine is as follows:
Everyone develops on the same local server at work, every developer ha...