大约有 47,000 项符合查询结果(耗时:0.0680秒) [XML]
A generic list of anonymous class
...
okay cool, now we need an example of replacing the new {} lines with a select statement. var list = sourceList.Select( o => new { ...
How do I cast a string to integer and have 0 in case of error in the cast with PostgreSQL?
...d dirty way of handling for checking some data. I also admit that my own knowledge is lacking right now in defining functions in SQL. I was only interested in numbers between 1 and 5 digits, so I changed the regex to E'\\d{1,5}$'.
– Bobort
Oct 6 '16 at 14:25
...
How can I get Express to output nicely formatted HTML?
...idn't mention what version of Express it was for.
– SnowInferno
Oct 8 '14 at 22:33
|
show 4 more comments
...
Blocks and yields in Ruby
...
Good to know different ways to trigger a block.
– LPing
Jun 25 '15 at 0:11
add a comment
|...
Encapsulation vs Abstraction?
...or the first time ever, it actually clicked in my head and made sense. I know it's been 3+ years since you posted this, but thank you.
– Casey Crookston
Oct 8 '15 at 14:39
1
...
How to check if a string contains a substring in Bash
...ash, and, of course Bash:
stringContain() { [ -z "${2##*$1*}" ]; }
Then now:
$ if stringContain 'o "M3' 'echo "My String"';then echo yes;else echo no;fi
no
$ if stringContain 'o "M' 'echo "My String"';then echo yes;else echo no;fi
yes
... Or if the submitted string could be empty, as pointed o...
How to use concerns in Rails 4
The default Rails 4 project generator now creates the directory "concerns" under controllers and models. I have found some explanations about how to use routing concerns, but nothing about controllers or models.
...
How do I get a file extension in PHP?
...uilt-in function to do that and not PHP (I am looking at Pythonistas right now :-)).
In fact, it does exist, but few people know it. Meet pathinfo():
$ext = pathinfo($filename, PATHINFO_EXTENSION);
This is fast and built-in. pathinfo() can give you other information, such as canonical path, depe...
How do I display an alert dialog on Android?
..._demo);
dialog.setTitle(R.string.dialog_title);
dialog.show();
}
Now create Layout XML dialog_demo.xml and create your UI/design. Here is a sample one I created for demo purposes:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
xmlns:android="http://schemas.android.com...
applicationWillEnterForeground vs. applicationDidBecomeActive, applicationWillResignActive vs. appli
...
Revise some descriptions and links, 2019 for now.
– tomjpsun
Sep 20 '19 at 2:56
add a comment
|
...