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NSUserDefaults removeObjectForKey vs. setObject:nil
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Swift 3.0
The below answer is no longer the case when I tested this.
When set to nil the result is NSCFData being stored. Possibly an NSNull object reference, but I am not positive.
To completely remove a value for a key use...
Is there any way to prevent input type=“number” getting negative values?
...Listen for input event on numInput.
number.onkeydown = function(e) {
if(!((e.keyCode > 95 && e.keyCode < 106)
|| (e.keyCode > 47 && e.keyCode < 58)
|| e.keyCode == 8)) {
return false;
}
}
<form action="" method="post">
<inp...
Is SecureRandom thread safe?
...afe implementation, and, from Java 7, explicitly guarantees threadsafety.
If many threads are using a single SecureRandom, there might be contention that hurts performance. On the other hand, initializing a SecureRandom instance can be relatively slow. Whether it is best to share a global RNG, or t...
Is there a recommended way to return an image using ASP.NET Web API
...ssage with the image stored in its content (as shown below). Remember that if you want the URL you showed in the question, you'd need a route that maps the {imageName}, {width} and {height} parameters.
public HttpResponseMessage Get(string imageName, int width, int height)
{
Image img = GetImag...
How to add a browser tab icon (favicon) for a website?
...Opera 10 and Safari 4) will always request a favicon.ico unless you've specified a shortcut icon via <link>.
So all you have to do is to make the /favicon.ico request to your website return your favicon. This option unfortunately doesn't allow you to use a PNG icon.
See also favicon.png vs ...
NPM clean modules
... under node_modules? Something like npm rebuild that removes all build artifacts but doesn't rebuild them?
8 Answers
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How to set space between listView Items in Android
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This doesn't help if you also want to show a divider without stretching it
– Sojurn
Mar 5 '13 at 13:30
4
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How to unset max-height?
How to I reset the max-height property to its default, if it has been previously set in some CSS rule? This doesn't work:
...
how to reset
... solution that @dhaval-marthak posted in the comments obviously works, but if you look at the actual jQuery call it's pretty easy to see what jQuery is doing, just setting the value attribute to an empty string. So in "pure" JavaScript it would be:
document.getElementById("uploadCaptureInputFile")....
Git: How to squash all commits on branch
...D))
[That] automatically uses the branch you are currently on.
And if you use that, you can also use an alias, as the command doesn't rely on the branch name.
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