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Most efficient way to create a zero filled JavaScript array?
...er.prototype.valueOf,0);
// [0, 0, 0, 0, 0]
If I want to pre-fill with a string:
Array.apply(null, Array(3)).map(String.prototype.valueOf,"hi")
// ["hi", "hi", "hi"]
Other answers have suggested:
new Array(5+1).join('0').split('')
// ["0", "0", "0", "0", "0"]
but if you want 0 (the number)...
Java: Date from unix timestamp
...
Instant instant = Instant.ofEpochSecond( 1_280_512_800L );
instant.toString(): 2010-07-30T18:00:00Z
See that code run live at IdeOne.com.
Asia/Kabul or Asia/Tehran time zones ?
You reported getting a time-of-day value of 22:30 instead of the 18:00 seen here. I suspect your PHP utility is...
MySQL indexes - what are the best practices?
...mpacts of indexing
UPDATEs and INSERTs will be slower. There's also the extra storage space requirments, but that's usual unimportant these days.
If i have a VARCHAR 2500 column which is searchable from parts of my site, should i index it
No, unless it's UNIQUE (which means it's already ind...
is it possible to update UIButton title/text programmatically?
... The UIButton will ignore the title change if it already has an Attributed String to use (with seems to be the default you get when using Xcode interface builder).
I used the following:
[self.loginButton
setAttributedTitle:[[NSAttributedString alloc] initWithString:@"Error !!!" attributes:ni...
How can I get the version defined in setup.py (setuptools) in my package?
...
Interrogate version string of already-installed distribution
To retrieve the version from inside your package at runtime (what your question appears to actually be asking), you can use:
import pkg_resources # part of setuptools
version = pkg_...
Why is it a bad practice to return generated HTML instead of JSON? Or is it?
...there is still the solution/hack of sending all those parts inside one big string that groups several HTML portions, and extract the relevant parts in JS.
For instance, you could return some string that looks like this :
<!-- MARKER_BEGIN_PART1 -->
here goes the html
code for part 1
<!-- ...
How to get multiple select box values using jQuery?
...('#multipleSelect').val() || []; Also worth noting it returns an array of strings. I was comparing to an integer and getting no matches, so i added a .toString().
– tkerwood
Jul 27 '16 at 2:05
...
How to scale a UIImageView proportionally?
...ound on the Apple Dev forums.
In a project-wide .h -
@interface UIImage (Extras)
- (UIImage *)imageByScalingProportionallyToSize:(CGSize)targetSize;
@end;
Implementation:
@implementation UIImage (Extras)
- (UIImage *)imageByScalingProportionallyToSize:(CGSize)targetSize {
UIImage *sourceI...
How can I convert a character to a integer in Python, and viceversa?
I want to get, given a character, its ASCII value.
3 Answers
3
...
Tool to compare directories (Windows 7) [closed]
... answered Jan 3 '13 at 12:30
richardtzrichardtz
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