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The main problem is that in some cases (specifically testing) this is woefully inadequate. What if you need to sleep for 500ms before returning from the function, for instance to simulate a slow async http request?
– A.Grandt
Sep 22 '16 a...
Is < faster than
...comparisons will be typically implemented in two machine instructions:
A test or cmp instruction, which sets EFLAGS
And a Jcc (jump) instruction, depending on the comparison type (and code layout):
jne - Jump if not equal --> ZF = 0
jz - Jump if zero (equal) --> ZF = 1
jg - Jump if greater ...
Detect Safari using jQuery
...gger !== 'undefined';
var is_safari = /^((?!chrome|android).)*safari/i.test(navigator.userAgent);
Usage:
if (is_safari) alert('Safari');
Or for Safari only, use this :
if ( /^((?!chrome|android).)*safari/i.test(navigator.userAgent)) {alert('Its Safari');}
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AngularJS sorting by property
...teger), just by definition in view.
Example JSON:
{
"123": {"name": "Test B", "position": "2"},
"456": {"name": "Test A", "position": "1"}
}
Here is a fiddle which shows you the usage:
http://jsfiddle.net/4tkj8/1/
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Fit image into ImageView, keep aspect ratio and then resize ImageView to image dimensions?
...tch the dimensions of the scaled image. The code is used in an activity. I tested it via button click handler.
Enjoy. :)
private void scaleImage(ImageView view) throws NoSuchElementException {
// Get bitmap from the the ImageView.
Bitmap bitmap = null;
try {
Drawable drawing ...
NSUserDefaults - How to tell if a key exists
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@zekel Rather than guessing, I tested this (on iOS 5.1.1), and it definitely detected whether or not a BOOL was present, independent of what the value of said BOOL might be. "objectForKey" returned nil when the BOOL was not present because it had never be...
Purge or recreate a Ruby on Rails database
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You'll also need to run rake db:test:prepare for testing, or else you'll get an error like: Could not find table 'things' (ActiveRecord::StatementInvalid)
– s2t2
Feb 17 '13 at 1:49
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Is there a properly tested alternative to Select2 or Chosen? [closed]
...lect2 that basically provides the same functionality, but includes proper tests.
3 Answers
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What is more efficient? Using pow to square or just multiply it with itself?
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I tested the performance difference between x*x*... vs pow(x,i) for small i using this code:
#include <cstdlib>
#include <cmath>
#include <boost/date_time/posix_time/posix_time.hpp>
inline boost::posix_time:...
Does R have an assert statement as in python?
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stopifnot()
You may also be interested in packages like Runit and testthat for unit testing.
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