大约有 9,220 项符合查询结果（耗时：0.0160秒） [XML]
is_null($x) vs $x === null in PHP [duplicate]
...s. It doesn't matter. It will never matter. Nobody trying to improve their application's performance has ever declared "curses, if only I could shave half a microsecond off this null check!", and nobody ever will.
– Mark Amery
Jun 20 '15 at 23:17
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How to get current relative directory of your Makefile?
I have a several Makefiles in app specific directories like this:
12 Answers
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Fatal error in launcher: Unable to create process using “”C:\Program Files (x86)\Python33\python.exe
...e it the accepted answer, though it's more of a workaround (or alternative approach) than an actual fix, but anyways, it is more universally applicable.
– Arc
Jan 16 '15 at 14:31
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Tracking CPU and Memory usage per process
I suspect that one of my applications eats more CPU cycles than I want it to. The problem is - it happens in bursts, and just looking at the task manager doesn't help me as it shows immediate usage only.
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Swift - which types to use? NSString or String
...one can
perform on Collection type.
For more information please refer apple documents.
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Memcached vs. Redis? [closed]
We're using a Ruby web-app with Redis server for caching. Is there a point to test Memcached instead?
17 Answers
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How do I create a new Swift project without using Storyboards?
...ion:
Classes and structures must set all of their stored properties to an appropriate initial value by the time an instance of that class or structure is created. Stored properties cannot be left in an indeterminate state.
Properties of optional type are automatically initialized with a value of ni...
How do I use Ruby for shell scripting?
...h()
For file system operations I almost always use Pathname. This is a wrapper for many of the other file system related classes. Also useful: Dir, File...
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How do I create a transparent Activity on Android?
... can also use @android:color/transparent in later Android versions.)
Then apply the style to your activity, for example:
<activity android:name=".SampleActivity" android:theme="@style/Theme.Transparent">
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</activity>
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Loading local JSON file
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I had the same need (to test my angularjs app), and the only way I found is to use require.js:
var json = require('./data.json'); //(with path)
note: the file is loaded once, further calls will use the cache.
More on reading files with nodejs: http://docs.nodejitsu....