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How can I convert a datetime object to milliseconds since epoch (unix time) in Python?
...pytz module to reliably convert local time to POSIX timestamp (unless OS already provides such db)
– jfs
May 15 '14 at 19:01
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How do I make a batch file terminate upon encountering an error?
... It's a very common idiom in most shell scripting languages, and it reads well: "Do this, or this if it fails.."
– Fowl
Nov 30 '12 at 5:22
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How do getters and setters work?
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Tutorial is not really required for this. Read up on encapsulation
private String myField; //"private" means access to this is restricted
public String getMyField()
{
//include validation, logic, logging or whatever you like here
return this.myField;
}
pub...
How can strings be concatenated?
...s of concatenating strings are:
join():
Very efficent, but a bit hard to read.
>>> Section = 'C_type'
>>> new_str = ''.join(['Sec_', Section]) # inserting a list of strings
>>> print new_str
>>> 'Sec_C_type'
String formatting:
Easy to read and in most ca...
How to use index in select statement?
...question you have to specify the DB you are using.
For MySQL, you want to read the Index Hint Syntax documentation on how to do this
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Best data type to store money values in MySQL
...Not being an accountant... but running a small biz in the UK... I remember reading somewhere a long time ago that currency figures should be stored to 4 decimals even for £, $, etc. so that certain calculations might actually use the last 2 decimal places for certain obscure accounting contexts. W...
Switch statement fallthrough in C#?
...k. The only reason /I/ knew about it is that I'm compiler theory nerd who read the ECMA-334 specs with a magnifying glass.
– Alex Lyman
Feb 6 '09 at 10:19
13
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How do I get the full path to a Perl script that is executing?
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This is really the best solution, especially if you already have a modified $0
– Caterham
Jan 8 '12 at 1:04
8
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Create an empty object in JavaScript with {} or new Object()?
...sing new Object(); - whereas {}; can make your code more compact, and more readable.
For defining empty objects they're technically the same. The {} syntax is shorter, neater (less Java-ish), and allows you to instantly populate the object inline - like so:
var myObject = {
title: 'Frog'...
Setting Authorization Header of HttpClient
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@lacripta, This is true but if you read the last 2 sentence I say its best practice to reuse HttpClient for exactly this reason but I think it is out of scope for this question.
– Florian Schaal
Aug 13 '18 at 16:40
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