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What does the plus sign do in '+new Date'
...n Number(new Date); }
see:
http://xkr.us/articles/javascript/unary-add/
and in MDN: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Arithmetic_Operators#Unary_plus
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How to clean node_modules folder of packages that are not in package.json?
...o be installed. After a while I see that I don't need some specific module and remove its dependency from package.json . Then I remove some other modules from package.json because they are not needed anymore and others are replaced with alternatives.
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How to find the duration of difference between two dates in java?
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try the following
{
Date dt2 = new DateAndTime().getCurrentDateTime();
long diff = dt2.getTime() - dt1.getTime();
long diffSeconds = diff / 1000 % 60;
long diffMinutes = diff / (60 * 1000) % 60;
long diffHours = diff / (60 * 60 * 1...
How do I delete all untracked files from my working directory in Mercurial?
...ded a bunch of files to my working directory, didn't add them via 'hg add' and now want to get rid of those new files entirely?
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How to set a default value for a datetime column to record creation time in a migration?
... end
end
See discussion at https://github.com/rails/rails/issues/27077 and answer there by prathamesh-sonpatki
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Import SQL file into mysql
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In Chrome they are called bookmarks, and you can just click the star in address bar ;)
– Andrew
Dec 29 '13 at 0:17
2
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how to get request path with express req object
I'm using express + node.js and I have a req object, the request in the browser is /account but when I log req.path I get '/' --- not '/account'.
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List of tuples to dictionary
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@chandresh This does work in Python 3, so no update is required.
– Sven Marnach
Apr 17 '18 at 13:48
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What is the equivalent of Java's final in C#?
...inal keyword has several usages in Java. It corresponds to both the sealed and readonly keywords in C#, depending on the context in which it is used.
Classes
To prevent subclassing (inheritance from the defined class):
Java
public final class MyFinalClass {...}
C#
public sealed class MyFinalClass {...
Pointers, smart pointers or shared pointers? [duplicate]
...ting/copying/destructing a shared pointer needs to be an atomic operation, and this can hinder performance if you have many threads running. However, it won't always be the case - only testing will tell you for sure.
There is an argument (that I like) against shared pointers - by using them, you ar...