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What is __pycache__?
...re it... All it does is make your program start a little faster. When your scripts change, they will be recompiled, and if you delete the files or the whole folder and run your program again, they will reappear (unless you specifically suppress that behavior).
When you're sending your code to other ...
Easiest way to check for an index or a key in an array?
...r this SO question: How to tell if a string is not defined in a bash shell script?
A wrapper function:
exists(){
if [ "$2" != in ]; then
echo "Incorrect usage."
echo "Correct usage: exists {key} in {array}"
return
fi
eval '[ ${'$3'[$1]+muahaha} ]'
}
For example
if ! ex...
How to generate the “create table” sql statement for an existing table in postgreSQL
...LL,
title character varying NOT NULL,
defaultvalue character varying NULL,
valuetype integer NOT ...
Rich vs Anemic Domain Model [closed]
...blic abstract class Person
{
public int Id { get; set; }
public string Title { get; set; }
public string FirstName { get; set; }
public string LastName { get; set; }
public string CompanyName { get; set; }
public string EmailAddress { get; set; }
public string Phone { get; set; }
}
I...
What does %~dp0 mean, and how does it work?
...
The variable %0 in a batch script is set to the name of the executing batch file.
The ~dp special syntax between the % and the 0 basically says to expand the variable %0 to show the drive letter and path, which gives you the current directory containi...
Serializing object that contains cyclic object value
...
much saver and it shows where an cycle object was.
<script>
var jsonify=function(o){
var seen=[];
var jso=JSON.stringify(o, function(k,v){
if (typeof v =='object') {
if ( !seen.indexOf(v) ) { return '__cycle__'; }
seen.push(v);
...
Multiple submit buttons on HTML form – designate one button as default [duplicate]
...e will cover many circumstances without having to resort to more hacky JavaScript methods.
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Is it possible to define more than one function per file in MATLAB, and access them from outside tha
...iles can not call them. Starting in R2016b, you can add local functions to scripts as well, although the scoping behavior is still the same (i.e. they can only be called from within the script).
In addition, you can also declare functions within other functions. These are called nested functions, a...
Java “Virtual Machine” vs. Python “Interpreter” parlance?
...re any better. They weren't designed to do that. They were designed for
"scripting", which is what programming in a dynamic language is called.
Every operation that takes place in a virtual machine eventually has to hit real hardware. Virtual machines contain pre-compiled routines which are gene...
ViewPager and fragments — what's the right way to store fragment's state?
...s the best solution. (Cross-referenced from another Q with a more relevant title, so thank you for that!)
– MandisaW
Sep 25 '19 at 21:23
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