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Do I need dependency injection in NodeJS, or how to deal with …?
...ontrived example.
MyClass.js:
var fs = require('fs');
MyClass.prototype.errorFileExists = function(dir) {
var dirsOrFiles = fs.readdirSync(dir);
for (var d in dirsOrFiles) {
if (d === 'error.txt') return true;
}
return false;
};
MyClass.test.js:
describe('MyClass', func...
Is it better to return null or empty collection?
... or "don't know". We could throw an exception, but it's not necessarily an error condition, and it doesn't necessarily drive us out of the normal program flow.
I've often been frustrated by systems that cannot distinguish between zero and no answer. I've had a number of times where a system has ask...
How to have the formatter wrap code with IntelliJ?
... all the time
– ACV
Jul 1 '19 at 11:05
This is correct, but in new versions, additional options were added to provide ...
MFC CListCtrl使用方法详解 - C/C++ - 清泛网 - 专注C/C++及内核技术
...eproject.com/listctrl/CListCtrlLink.asp
(4) subitem的tooltip提示
http://www.codeproject.com/listctrl/ctooltiplistctrl.asp
(5) subitem中显示进度条
http://www.codeproject.com/listctrl/ProgressListControl.asp
...
Why does intellisense and code suggestion stop working when Visual Studio is open?
...date from this, either.
Copy/pasting code from another page that caused an error because the code copied referred to a control that wasn't on the page I was pasting to.
C++ project has corrupt .ncb file
(Please add to comments if you notice behavior that causes this.)
...
Postgis installation: type “geometry” does not exist
...I do it by this page . But when I import postgis.sql file, I get a lot of errors:
10 Answers
...
Get final URL after curl is redirected
...ile.
– Steven Penny
Jun 15 '14 at 2:05
2
Some websites also need a spoofed user agent with curl -...
Batch renaming files with Bash
...
To avoid re-run errors, you can use the same pattern in the ".pkg" part, ie "for i in *-[0-9.].pkg ; do mv $i ${i/-[0-9.]*.pkg/.pkg} ; done". But the errors are innocuous enough (moving to the same file).
– richq
...
With MySQL, how can I generate a column containing the record index in a table?
...
– Daniel Vassallo
Feb 27 '12 at 23:05
20
People should be aware that this row number is calculat...
Setting variable to NULL after free
...ou get an immediate crash on most systems, telling you right away what the error is.
For local variables, it may be a little bit pointless if it is "obvious" that the pointer isn't accessed anymore after being freed, so this style is more appropriate for member data and global variables. Even for l...