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How do I create delegates in Objective-C?
...rmat:@"Parameter does not conform to MyDelegate protocol at line %d", (int)__LINE__];
}
in your delegate accessor (setDelegate) code. This helps minimize mistakes.
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How to get NSDate day, month and year in integer format?
...nthYear
If you wanted to e.g. get only the the year you can write:
let (_, _, year) = date.dayMonthYear
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HTML5: Slider with two inputs possible?
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No, the HTML5 range input only accepts one input. I would recommend you to use something like the jQuery UI range slider for that task.
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How to detect when a UIScrollView has finished scrolling
...nt:
- (void)scrollViewDidEndDecelerating:(UIScrollView *)scrollView {
_isScrolling = NO;
}
- (void)scrollViewDidEndDragging:(UIScrollView *)scrollView willDecelerate:(BOOL)decelerate {
if (!decelerate) {
_isScrolling = NO;
}
}
Now, if your scroll is due to a programmatic setC...
Typical .gitignore file for an Android app
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You can mix Android.gitignore:
# built application files
*.apk
*.ap_
# files for the dex VM
*.dex
# Java class files
*.class
# generated files
bin/
gen/
# Local configuration file (sdk path, etc)
local.properties
with Eclipse.gitignore:
*.pydevproject
.project
.metadata
bin/**
tmp/**
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Slicing of a NumPy 2d array, or how do I extract an mxm submatrix from an nxn array (n>m)?
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There is a helpful function for doing the first example I gave, numpy.ix_. You can do the same thing as my first example with x[numpy.ix_([0,2],[1,3])]. This can save you from having to enter in all of those extra brackets.
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When does a process get SIGABRT (signal 6)?
...;- this is the kill syscall, sends signal to process
syscall <-----
http://blog.rchapman.org/posts/Linux_System_Call_Table_for_x86_64/
234 sys_tgkill pid_t tgid pid_t pid int sig = 6 = SIGABRT
:)
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关于App Inventor 2过程积木，被问最多的6个问题 - App应用开发 - 清泛IT社...
...>做过程名。完整列表在 <a href="https://en.wikipedia.org/wiki/List_of_Java_keywords" target="_blank">Java关键字列表</a> ，常见的有 <font face="Courier New">if</font>、<font face="Courier New">else</font>、<font face="Courier New">while</font>、<font face="Courier New">for</font...
Longest line in a file
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awk '{print length, $0}' Input_file |sort -nr|head -1
For reference : Finding the longest line in a file
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How do I remove all specific characters at the end of a string in PHP?
...e end, not just the last character
$string = "something here..";
echo preg_replace("/\.$/","",$string);
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