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How to count certain elements in array?
...t later will have to spend some time to check what it does, and lose focus from their task. An abstraction is far superior: const count = countItems(array, 2); and the implementation details can be argued inside.
– joeytwiddle
Jul 14 '16 at 5:37
...
How to “properly” create a custom object in JavaScript?
...unction rather than the constructor itself. This function can then inherit from the base just fine:
function Shape() { this._init.apply(this, arguments); }
Shape.prototype._init= function(x, y) {
this.x= x;
this.y= y;
};
function Point() { this._init.apply(this, arguments); }
Point.subclas...
When is it acceptable to call GC.Collect?
The general advise is that you should not call GC.Collect from your code, but what are the exceptions to this rule?
24 An...
After Installing Java JDK 7 For Mac OS X - mvn -version still shows java version 1.6.0_31
... unable to open the Java Preferences App in El Captian, I went from System Preferences - > Java.
– Wolf7176
Aug 29 '16 at 14:54
...
Android - border for button
...pport:design:28.0.0'
}
style.xml
Ensure your application theme inherits from Theme.MaterialComponents instead of Theme.AppCompat.
<style name="AppTheme" parent="Theme.MaterialComponents.Light.DarkActionBar">
<!-- Customize your theme here. -->
</style>
• Bordered Butt...
Multiple columns index when using the declarative ORM extension of sqlalchemy
... SQSAlchemy, trying to figure out a how to substitute mytable.c.somecol.
from sqlalchemy import Index
Index('someindex', mytable.c.somecol.desc())
We can just use the model property and call .desc() on it:
from flask_sqlalchemy import SQLAlchemy
db = SQLAlchemy()
class GpsReport(db.Model):
...
Clang optimization levels
...-loop-accesses -loop-distribute -loop-vectorize -loop-load-elim -alignment-from-assumptions -strip-dead-prototypes -loop-sink -instsimplify -div-rem-pairs -verify -ee-instrument -early-cse -lower-expect
clang adds : -momit-leaf-frame-pointer
clang drops : -mdisable-fp-elim -mrelax-all
-O2 is based...
What is the difference between compile code and executable code?
...
From wikipedia:
In the field of computer software, the term software build refers either to the process of converting source code files into standalone software artifact(s) that can be run on a computer, or the result of doi...
How to store a command in a variable in a shell script?
... contains spaces, quoting inside while adding to the array will prevent it from getting split due to Word-Splitting.
declare -p cmdArgs
declare -a cmdArgs='([0]="date" [1]="+%H:%M:%S")'
and execute the commands as
"${cmdArgs[@]}"
23:15:18
(or) altogether use a bash function to run the command,
cmd...
Clear variable in python
...efined it in the first place. A value of None in Python is quite different from an undefined variable. None is quite like most other incarnations of null, however (until we get into more arcane details, at least).
– Ben
Nov 23 '11 at 5:57
...