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What is the difference between sites-enabled and sites-available directory?
...file inside the sites-enabled directory. That will prevent Apache or NGINX from starting. If your site was working, it will not be anymore. You will have a hard time until you find out, in the logs, something related to the default.save file and, then, remove it.
In the example above, if you were e...
What is compiler, linker, loader?
...s a basic concept for all other computing systems.
*
Linkers and Loaders from LinuxJournal explains this concept with clarity. It also explains how the classic name a.out came. (assembler output)
A quick summary,
c program --> [compiler] --> objectFile --> [linker] --> executable f...
Programmatically set height on LayoutParams as density-independent pixels
...not change, it saves a bit of processing time.
/**
* Get conversion rate from dp into px.<br>
* E.g. to convert 100dp: px = (int) (100 * convRate);
* @param context e.g. activity
* @return conversion rate
*/
public static float convRateDpToPx(Context context) {
return context.getReso...
How to use ng-repeat without an html element
...e else, etc.. just like in the good old days when we would concat our html from strings.. right? no.
as for flattening the structure into a list, here's another solution:
// assume the following structure
var structure = [
{
name: 'item1', subitems: [
{
name...
Fetch first element which matches criteria
... empty. In this case the call to get() will throw the NPE. To prevent that from happening, use orElse() instead of get() and provide a fallback object (like orElse(new Station("dummy", -1)), or store the result of findFirst() in a variable and check it with isEmpty() before calling get()
...
How to sync with a remote Git repository?
...git pull is not going to work unless you've configured the remote to fetch from and the branch to merge to.
– Abizern
Nov 30 '10 at 11:53
...
Can I tell the Chrome script debugger to ignore jquery.js?
...u set the blackbox option on a given file, it will prevent Chrome debugger from breaking into that file.
This feature is built-in and it can be set with the context menu of the file (right click). It will also work if Chrome debugger is set for stopping on all exceptions.
...
How are feature_importances in RandomForestClassifier determined?
... the Permutation Importance metric and can be used to calculate the values from an instance of a scikit-learn random forest class:
https://github.com/pjh2011/rf_perm_feat_import
Edit: This works for Python 2.7, not 3
share...
DROP IF EXISTS VS DROP?
...s properly, I stumbled over this question, as I guess many others do too.
From SQL Server 2016+ you can use
DROP TABLE IF EXISTS dbo.Table
For SQL Server <2016 what I do is the following for a permanent table
IF OBJECT_ID('dbo.Table', 'U') IS NOT NULL
DROP TABLE dbo.Table;
Or this, for...
A good solution for await in try/catch/finally?
... While this is valid for C# 6, the question was tagged C# 5 from the very beginning. This makes me wonder if having this answer here is confusing, or if we should just remove the specific version tag in these cases.
– julealgon
Dec 26 '18 at 22:3...