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Maven: how to do parallel builds?
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What does 1.5 threads mean? If I have a single core system, does that mean 1 thread, but a dual core system results in 3 threads?
– Saad Malik
Apr 28 '14 at 19:35
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Why are ToLookup and GroupBy different?
...erformance implications of each are completely different. Calling ToLookup means I want a cache of the entire thing right now organized by group. Calling GroupBy means "I am building an object to represent the question 'what would these things look like if I organized them by group?'"
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Simple example of threading in C++
...he thread to be done executing the function, call:
t1.join();
(Joining means that the thread who invoked the new thread will wait for the new thread to finish execution, before it will continue its own execution).
The Code
#include <string>
#include <iostream>
#include <thread...
How to export all data from table to an insertable sql format?
...y to filter out the zeros (no text editor will handle it because zero just means end of the string).
– Martin Maat
Jun 2 '17 at 11:52
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Image loaded event in for ng-src in AngularJS
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what you mean by "$apply() should only be used by external sources"? i'm not following.
– genuinefafa
Sep 14 '16 at 13:25
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Sync data between Android App and webserver [closed]
...e seen Evernote or similar Applications, you certainly understand what I mean.
9 Answers
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What is the string concatenation operator in Oracle?
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@ipip: I am confused - if by "logical operator" you mean operators like AND, NOT etc. then of course || is not a logical operator. But what does that have to due with 'x'||null returning x? n+null returns null, so is + a logical operator?
– Tony Andrews...
Simpler way to put PDB breakpoints in Python code?
...ey just implemented a new built-in called breakpoint() in Python 3.7 which means you can insert a breakpoint with one statement now:
breakpoint()
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Pass props to parent component in React.js
...rwise React issues a warning related to its autobinding system. Using null means you don't want to change the function context. See also.
About encapsulation and coupling in other answers
This is for me a bad idea in term of coupling and encapsulation:
var Parent = React.createClass({
handleCli...
Android Fragments. Retaining an AsyncTask during screen rotation or configuration change
...tion, and setRetainInstance() is false so that the layout can change. This means that when the device orientation is changed, both MainActivity and MainFragment are completely destroyed and recreated.
Separately we have MyTask (extended from AsyncTask) which does all the work. We can't store it in ...