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Set the maximum character length of a UITextField
...range length. If this value is too long (more than 25 characters in this example), return NO to prohibit the change.
When typing in a single character at the end of a text field, the range.location will be the current field's length, and range.length will be 0 because we're not replacing/deleting an...
Batch script: how to check for admin rights
...missions required. Detecting permissions...
net session >nul 2>&1
if %errorLevel% == 0 (
echo Success: Administrative permissions confirmed.
) else (
echo Failure: Current permissions inadequate.
)
pause >nul
Available here, if you're lazy: https:...
How to enable CORS in AngularJs
...the server - just pass the headers from within your script. If you have a PHP backend it would be header('Access-Control-Allow-Origin: *');
– davidkonrad
Feb 27 '16 at 23:32
...
Bash array with spaces in elements
...through its indices, like so, it works if I add the elements either numerically or with escapes:
for ((i = 0; i < ${#FILES[@]}; i++))
do
echo "${FILES[$i]}"
done
Any of these declarations of $FILES should work:
FILES=(2011-09-04\ 21.43.02.jpg
2011-09-05\ 10.23.14.jpg
2011-09-09\ 12.31.16....
Get button click inside UITableViewCell
...er)
- (IBAction)buttonClicked:(UIButton *)sender {
if (self.delegate && [self.delegate respondsToSelector:@selector(didClickOnCellAtIndex:withData:)]) {
[self.delegate didClickOnCellAtIndex:_cellIndex withData:@"any other cell data/property"];
}
}
In table view controller ...
Accessing nested JavaScript objects and arays by string path
...ath.split(separator)
return properties.reduce((prev, curr) => prev && prev[curr], obj)
}
Example usage:
// accessing property path on global scope
resolve("document.body.style.width")
// or
resolve("style.width", document.body)
// accessing array indexes
// (someObject has been de...
What is the difference between sigaction and signal?
...estion: how the heck do we use this confusing sigaction() thing!?
Usage Examples:
Read GCC's EXCELLENT signal() example here: https://www.gnu.org/software/libc/manual/html_node/Basic-Signal-Handling.html#Basic-Signal-Handling
And their EXCELLENT sigaction() example here: https://www.gnu.org/softw...
Why does the JVM still not support tail-call optimization?
...ple loop must be done dynamically by a JIT compiler.
It then gives an example of Java code that won't transform.
So, as the example in Listing 3 shows, we cannot expect static compilers to perform transformation of tail recursion on Java code while preserving the semantics of the language. In...
How to fix Terminal not loading ~/.bashrc on OS X Lion [closed]
...ofile: just put this snippet in your ~/.bash_profile:
[[ -s ~/.bashrc ]] && source ~/.bashrc
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Counting inversions in an array
...imilar solution in C++11, including a general iterator-based solution and sample random testbed using sequences from 5-25 elements. Enjoy!.
– WhozCraig
Apr 20 '14 at 20:15
...