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What is base 64 encoding used for?
...ry you could do base-80 encoding or something similar, but it would be significantly harder. Powers of two are natural bases for binary.)
– Jon Skeet
Oct 14 '08 at 15:08
13
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What is more efficient: Dictionary TryGetValue or ContainsKey+Item?
...
you can actually look at the .net source for it now too: referencesource.microsoft.com/#mscorlib/system/collections/… you can see that all 3 of TryGetValue, ContainsKey, and this[] call the same FindEntry method and do the same amount of work, only differing in how they...
SVN encrypted password store
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It is a client issue. It warns you that the credentials used for the different servers are being stored in plain text. You can hide that warning or use an encrypted storage to cache the passwords.
See: http://blogs.collab.net/subversion/2009/07/subversion-16-security-improvements/
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Excluding directories in os.walk
...ose of this script) stuff, I figured I'd add an option for the user to specify a list of directories to exclude from the traversal.
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Detect if an input has text in it using CSS — on a page I am visiting and do not control?
...nction adjustStyling (zEvent) {
var inpVal = zEvent.target.value;
if (inpVal && inpVal.replace (/^\s+|\s+$/g, "") )
zEvent.target.style.background = "lime";
else
zEvent.target.style.background = "inherit";
}
...
HTML 5 tag vs Flash video. What are the pros and cons?
...question was made over 9 years ago. It made sense then, it doesn't make it now. Flash is hard on its way out; <video> support is ubiquitous, including mobile devices. Almost anything that Flash could do, HTML can now do too. HTML won, Flash lost. If you're pondering on how to embed video in ...
targetContentOffsetForProposedContentOffset:withScrollingVelocity without subclassing UICollectionVi
...d my flow layout subclass.
Because you're doing it this way you can't specify items sizes, etc... in IB so in MyCollectionViewFlowLayout.m I have this...
- (void)awakeFromNib
{
self.itemSize = CGSizeMake(75.0, 75.0);
self.minimumInteritemSpacing = 10.0;
self.minimumLineSpacing = 10.0;
...
How to undo the effect of “set -e” which makes bash exit immediately if any command fails?
...entering set -e in an interactive bash shell, bash will exit immediately if any command exits with non-zero. How can I undo this effect?
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Changing Java Date one hour back
...lDateTime().minusHours(1)
Java 8: java.time.LocalDateTime
LocalDateTime.now().minusHours(1)
Java 8 java.time.Instant
// always in UTC if not timezone set
Instant.now().minus(1, ChronoUnit.HOURS));
// with timezone, Europe/Berlin for example
Instant.now()
.atZone(ZoneId.of("Europe/Berlin...
Draw on HTML5 Canvas using a mouse
...
x = "white";
break;
}
if (x == "white") y = 14;
else y = 2;
}
function draw() {
ctx.beginPath();
ctx.moveTo(prevX, prevY);
ctx.lineTo(currX, currY);
ctx.strokeStyle = x;
c...