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Make a phone call programmatically
...
The answers here are perfectly working. I am just converting Craig Mellon answer to Swift. If someone comes looking for swift answer, this will help them.
var phoneNumber: String = "telprompt://".stringByAppendingString(titleLabel.text!) // titleLabel.text has the phone nu...
How to find index of list item in Swift?
...e for Swift 4.2:
With Swift 4.2, index is no longer used but is separated into firstIndex and lastIndex for better clarification. So depending on whether you are looking for the first or last index of the item:
let arr = ["a","b","c","a"]
let indexOfA = arr.firstIndex(of: "a") // 0
let indexOfB =...
How can I reverse a NSArray in Objective-C?
...e)
- (void)reverse {
if ([self count] <= 1)
return;
NSUInteger i = 0;
NSUInteger j = [self count] - 1;
while (i < j) {
[self exchangeObjectAtIndex:i
withObjectAtIndex:j];
i++;
j--;
}
}
@end
...
Directory-tree listing in Python
...would be better, but I guess a generator is more versatile since it can be converted to a list. It depends on whether you're looking for, versatility or something a little bit more streamlined.
– James Mchugh
Aug 9 '18 at 20:02
...
How do I get elapsed time in milliseconds in Ruby?
...) values. These operations result in second resolution which can easily be converted.
For example:
def time_diff_milli(start, finish)
(finish - start) * 1000.0
end
t1 = Time.now
# arbitrary elapsed time
t2 = Time.now
msecs = time_diff_milli t1, t2
You will need to decide whether to truncat...
What are .dex files in Android?
... files. But after .class files are generated, the “dx” tool is used to convert all .class files into a single .dex, or Dalvik Executable, file. It is the .dex file that is executed on the Dalvik VM. The .dex file has been optimized for memory usage and the design is primarily driven by sharing o...
Excel Date to String conversion
...ming cell A1 contains a date, and using VBA code:
Dim strDate As String
'Convert to string the value contained in A1 (a date)
strDate = CStr([A1].Value)
You can, thereafter, manipulate it as any ordinary string using string functions (MID, LEFT, RIGHT, LEN, CONCATENATE (&), etc.)
...
How to add line breaks to an HTML textarea?
...the text into the textarea and then add some JavaScript behind a button to convert the invisible characters to something readable and dump the result to a DIV. That will tell you what your browser wants.
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How to reload page every 5 seconds?
I am converting one layout to html; once I make the changes in code/html/css, every time I have to hit F5. Is there any simple javascript/jQuery solution for this? I.e. after I add the script, reload the whole page every 5 seconds (or some other specific time).
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Cannot use object of type stdClass as array?
... the second parameter of the json_decode(); to true, it will automatically convert the object to an array();
Here are some references:
http://php.net/manual/en/function.print-r.php
http://php.net/manual/en/function.var-dump.php
http://php.net/manual/en/function.var-export.php
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