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Microsecond timing in JavaScript
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I really liked this response. I ran a few tests and came up with an example you can drop into your console to see that this still will have dramatic collisions when using this. (note I was getting 10% collisions on a good machine even with doing something as expensiv...
Listing only directories using ls in Bash?
... NB. 3 was noticeably slower than the others for me. In the directory I tested: 1 .012s, 2 .016s, 3 .055s, 4 .021s.
– isomorphismes
Jul 30 '13 at 1:35
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Count immediate child div elements using jQuery
...$('#foo').children().size() for better performance.
I've created a jsperf test to see the speed difference and the children() method beaten the child selector (#foo > div) approach by at least 60% in Chrome (canary build v15) 20-30% in Firefox (v4).
By the way, needless to say, these two approa...
Subscript and Superscript a String in Android
...script from string.xml file try this:
string resource:
<string name="test_string">X&lt;sup&gt;3&lt;/sup&gt;</string>
if you want the superscript to be smaller:
<string name="test_string">X&lt;sup&gt;&lt;small&gt;3&lt;/small&gt;&lt;/...
How can I check if a directory exists in a Bash shell script?
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Instead of testing for both the directory (-d) and the symlink (-L), it's easier just to append a slash to the variable, like if [ -d "${THING:+$THING/}" ]. A directory won't mind the extra slash. A file will evaluate to false. Empty wi...
Notifier 通知扩展：功能强大的Android通知管理工具，支持通知通道、意图、...
...代码
示例
Simple Notification Test 简单通知测试
Extended Notification Test 扩展通知测试
Progress Bar Test 进度条测试
Notification Alarm Test 通知闹钟测试
Remember URS 记忆URS
KeepAw...
Differences between C++ string == and compare()?
... are relevant differences. Although I'm glad Bo Persson shows that the two tests will definitely return the same value. !s.compare(t) and s == t will return the same value, but the compare function provides more information than s == t, and s == t is more readable when you don't care how the strings...
Command line progress bar in Java
...ersion>
</dependency>
Usage:
ProgressBar pb = new ProgressBar("Test", 100); // name, initial max
// Use ProgressBar("Test", 100, ProgressBarStyle.ASCII) if you want ASCII output style
pb.start(); // the progress bar starts timing
// Or you could combine these two lines like this:
// P...
How do I partially update an object in MongoDB so the new object will overlay / merge with the exist
...operties of those objects.
Given the object you specified above:
> db.test.insert({"id": "test_object", "some_key": {"param1": "val1", "param2": "val2", "param3": "val3"}})
WriteResult({ "nInserted" : 1 })
We can update just some_key.param2 and some_key.param3:
> db.test.findAndModify({
....
Library? Static? Dynamic? Or Framework? Project inside another project
...hunk of code that I've been developing as another project just for ease of testing. The new chunk basically deals with saving an image to various sharing services, etc.. Because that sharing code needs a lot of testing and future updating, I was wondering what the best way to incorporate that code c...