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How to check for null in Twig?
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In addition, unlike the PHP isset() function, is defined will return true if a variable is defined and it's value is null.
– Pavel Petrov
Sep 19 '17 at 7:59
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Lightweight Javascript DB for use in Node.js [closed]
Anybody know of a lightweight yet durable database, written in Javascript, that can be used with Node.js.
11 Answers
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How to exit from PostgreSQL command line utility: psql
What command or short key can I use to exit the PostgreSQL command line utility psql ?
9 Answers
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Checking for empty queryset in Django
...ed method to know whether a query will return records is to use do if queryset:...
– Louis
Nov 3 '15 at 16:26
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Error: Cannot pull with rebase: You have unstaged changes
... to keep the changes you can do git checkout -- <file name> or git reset --hard to get rid of the changes.
For the most part, git will tell you what to do about changes. For example, your error message said to git stash your changes. This would be if you wanted to keep them. After pulling, yo...
Is Using .NET 4.0 Tuples in my C# Code a Poor Design Decision?
... types that share a similar structure, and treating them simply as ordered set of values. In all cases, a benefit of tuples is that they avoid cluttering your namespace with data-only classes that expose properties but not methods.
Here's an example of a reasonable use for Tuple<>:
var oppon...
What is the difference in maven between dependency and plugin tags in pom xml?
...What I meant was, spring-plugin will perform a certain task of executing a set of code, which might be dependent on some libraries, which will be specified by the 'dependencies'. Take a different example: you need a compiler to execute a piece of code; Here, your compiler is a plugin and your code i...
Import error: No module name urllib2
Here's my code:
9 Answers
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Network tools that simulate slow network connection [closed]
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You can completely reset all tc rules for loopback with the single command sudo tc qdisc del dev lo root - change lo to eth0 if you're using a wired connection etc
– Hamish Downer
Sep 18 '13 at 14:26
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git reset --hard HEAD leaves untracked files behind
When I run git reset --hard HEAD , it's supposed to reset to a pristine version of what you pulled, as I understand it. Unfortunately, it leaves files lying around, as a git status shows a big list of untracked files.
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