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Returning value from Thread
...;Integer>() {
@Override
public Integer call() {return 2;}
});
Now all you do is say value.get() whenever you need to grab your returned value, the thread is started the very second you give value a value so you don't ever have to say threadName.start() on it.
What a Future is, is a pro...
How does git merge after cherry-pick work?
...:
o---X <-- master
\
b1---b2---b3---b4 <-- b
Now we urgently need the commits b1 and b3 in master, but not the
remaining commits in b. So what we do is checkout the master branch
and cherry-pick commits b1 and b3:
$ git checkout master
$ git cherry-pick "b1's SHA"
...
Understanding ibeacon distancing
...ssi) over the calibrated transmitter power (txPower). The txPower is the known measured signal strength in rssi at 1 meter away. Each beacon must be calibrated with this txPower value to allow accurate distance estimates.
While the distance estimates are useful, they are not perfect, and require ...
How to change the opacity (alpha, transparency) of an element in a canvas element after it has been
... figured out how to load the image and draw it to the canvas, but I don't know how to change its opacity once it as been drawn.
...
T-SQL - function with default parameters
...dvantage of default concept here... I need to go and change all the places now.
– LCJ
Sep 12 '14 at 20:26
8
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Creating a new DOM element from an HTML string using built-in DOM methods or Prototype
...oduced the <template> element which can be used for this purpose (as now described in the WhatWG spec and MDN docs).
A <template> element is used to declare fragments of HTML that can be utilized in scripts. The element is represented in the DOM as a HTMLTemplateElement which has a .con...
Do declared properties require a corresponding instance variable?
...e Modern Objective-C Runtime (that's either iOS 3.x or greater, or 64-bit Snow Leopard or greater) then you do not need to define ivars for your properties in cases like this.
When you @synthesize the property, the ivar will in effect be synthesized also for you. This gets around the "fragile-ivar"...
Types in MySQL: BigInt(20) vs Int(20)
...
` it affects only the ZEROFILL option:` now my curiosity ends
– Umair Ayub
Jul 5 '16 at 10:42
6
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Can promises have multiple arguments to onFulfilled?
... consume. Promise implementations do what you ask with .spread for a while now. For example:
Promise.try(function(){
return ["Hello","World","!"];
}).spread(function(a,b,c){
console.log(a,b+c); // "Hello World!";
});
With Bluebird. One solution if you want this functionality is to polyfil...
Java Constructor Inheritance
I was wondering why in java constructors are not inherited? You know when you have a class like this:
10 Answers
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