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What is Double Brace initialization in Java?
...n't take much initialisation time if you do it once. But if you do this 20'000 times throughout your enterprise application... all that heap memory just for a bit of "syntax sugar"?
2. You're potentially creating a memory leak!
If you take the above code and return that map from a method, callers ...
Getting a list of all subdirectories in the current directory
...d os.listdir+os.path.isdir solutions: I just tested on a directory with 10,000 subdirectories (with millions of files in the hierarchy below) and the performance differences are negligible. os.walk: "10 loops, best of 3: 44.6 msec per loop" and os.listdir+os.path.isdir: "10 loops, best of 3: 45.1 ms...
Using str_replace so that it only acts on the first match?
...ge
Benchmark testing for each contrubution (average execution time over 10,000 runs)
Links to each answer (for the full code)
All functions were tested with the same settings:
$string = 'OOO.OOO.OOO.S';
$search = 'OOO';
$replace = 'B';
Functions that only replace the first occurrence of a ...
How to decide font color in white or black depending on background color?
...rresponding text.
if (red*0.299 + green*0.587 + blue*0.114) > 186 use #000000 else use #ffffff
The threshold of 186 is based on theory, but can be adjusted to taste. Based on the comments below a threshold of 150 may work better for you.
Edit: The above is simple and works reasonably well, an...
Is !important bad for performance?
...so, but it is hard to be sure; the layout/style directory in Firefox is 80,000 lines of code.
– Jason Orendorff
Dec 7 '12 at 14:51
1
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Force R to stop plotting abbreviated axis labels - e.g. 1e+00 in ggplot2
...
Did you try something like :
options(scipen=10000)
before plotting ?
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What is the best way to paginate results in SQL Server
What is the best way (performance wise) to paginate results in SQL Server 2000, 2005, 2008, 2012 if you also want to get the total number of results (before paginating)?
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Avoid trailing zeroes in printf()
... string based on that. The test harness main() shows this in action:
40.00000000000000000000 -> 40.000
359.01335000000000263753 -> 359.013
-359.00999000000001615263 -> -359.010
359.00999999999999090505 -> 359.010
3.01357000000000008200 -> 3.014
0.11111111099999999852 -> ...
How to change color of SVG image using CSS (jQuery SVG image replacement)?
...
Style
svg path {
fill: #000;
}
Script
$(document).ready(function() {
$('img[src$=".svg"]').each(function() {
var $img = jQuery(this);
var imgURL = $img.attr('src');
var attributes = $img.prop("attributes");
$....
How to increase the gap between text and underlining in CSS
...
No, but you could go with something like border-bottom: 1px solid #000 and padding-bottom: 3px.
If you want the same color of the "underline" (which in my example is a border), you just leave out the color declaration, i.e. border-bottom-width: 1px and border-bottom-style: solid.
For multi...