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Calling constructor from other constructor in same class
...important:
private Test(bool a, int b)
{
// ... remember that this is called by the public constructor
// with `this(...`
if (hasValue(this.C))
{
// ...
}
this.A = a;
this.B = b;
}
Above, I have added a bogus function call that determines whether property...
Add icon to submit button in twitter bootstrap 2
...ySubmit" type="submit" value="Go" class="hidden" />
</form>
Basically you get a label element for the input (type=submit) and then you hide the actual input submit. Users can click on the label element and still get through with the form submission.
...
Does the JVM prevent tail call optimizations?
...
This post: Recursion or Iteration? might help.
In short, tail call optimization is hard to do in the JVM because of the security model and the need to always have a stack trace available. These requirements could in theory be supported, but it would probably require a new bytecode (see ...
How do I pass the this context to a function?
...
Javascripts .call() and .apply() methods allow you to set the context for a function.
var myfunc = function(){
alert(this.name);
};
var obj_a = {
name: "FOO"
};
var obj_b = {
name: "BAR!!"
};
Now you can call:
myfunc.c...
Print number of keys in Redis
...ported, you can get number of wildcard keys like this
eval "return #redis.call('keys', 'prefix-*')" 0
see eval command
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How to retrieve the dimensions of a view?
...d getWidth() always return 0. This happens when I format the grid dynamically and also when I use an XML version.
16 A...
Webview load html from assets directory
...re creating activity, you must add setcontentview(your layout) after super call. Because setcontentview bind xml into your activity so that's the reason you are getting nullpointerexception.
setContentView(R.layout.webview);
webView = (WebView) findViewById(R.id.webView1);
wv.loadUrl("file://...
Get an object properties list in Objective-C
...^). I fixed it by actually getting an NSString from the attribute and then calling cStringUsingEncoding:. This works like a charm now. (Also works with ARC, at least for me)
So this is my version of the code now:
// PropertyUtil.h
#import
@interface PropertyUtil : NSObject
+ (NSDictionary *)cla...
Download file of any type in Asp.Net MVC using FileResult?
...
What about client side, calling this method? Lets say if you want to show save as dialog?
– FrenkyB
Apr 27 '19 at 3:47
add a...
Are C# events synchronous?
...y trying): the last subscriber.
public event Func<int, string> OnCall;
private int val = 1;
public void Do()
{
if (OnCall != null)
{
var res = OnCall(val++);
Console.WriteLine($"publisher got back a {res}");
}
}
}
public cl...