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Identify if a string is a number
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int n;
bool isNumeric = int.TryParse("123", out n);
Update As of C# 7:
var isNumeric = int.TryParse("123", out int n);
or if you don't need the number you can discard the out parameter
var isNumeric = int.TryParse("123", out _);
The var s can be replaced ...
How to make rpm auto install dependencies
...very well if you're trying to script RPM to automate the install of YUM on AIX like me ;-)
– Tricky
Mar 14 '18 at 10:32
1
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Is it Pythonic to use list comprehensions for just side effects?
Think about a function that I'm calling for its side effects, not return values (like printing to screen, updating GUI, printing to a file, etc.).
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How to inspect the return value of a function in GDB?
Is it possible to inspect the return value of a function in gdb assuming the return value is not assigned to a variable?
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Detecting when user has dismissed the soft keyboard
...ow...
So I created a more neat solution with Kotlin
1.Create an extension function:
fun Activity.addKeyboardToggleListener(onKeyboardToggleAction: (shown: Boolean) -> Unit): KeyboardToggleListener? {
val root = findViewById<View>(android.R.id.content)
val listener = KeyboardToggl...
How to convert SecureString to System.String?
... Andrew ArnottAndrew Arnott
72.7k2424 gold badges123123 silver badges162162 bronze badges
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How to Query an NTP Server using C#?
...ntry(ntpServer).AddressList;
//The UDP port number assigned to NTP is 123
var ipEndPoint = new IPEndPoint(addresses[0], 123);
//NTP uses UDP
using(var socket = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp))
{
socket.Connect(ipEndPoint);
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A semantics for Bash scripts?
...ion.
$ foo() { echo $x; }
$ bar() { local x; echo $x; }
$ foo
$ bar
$ x=123
$ foo
123
$ bar
$ …
Environment and process "scope"
Subshells inherit the variables of their parent shells, but other kinds of processes don't inherit unexported names.
$ x=123
$ ( echo $x )
123
$ bash -c 'echo $x'...
REDHAT 6.4 X64下ORACLE 11GR2静默安装 - 数据库(内核) - 清泛网 - 专注C/C++及内核技术
...ch ru : Russian
# ar_EG: Egyptian zh_CN: Simplified Chinese
# en_GB: English (Great Britain) sk : Slovak
# et : Estonian sl : Slovenian
# fi : Finnish es_ES: Spanish
# de : German sv : Swedish
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How can I escape white space in a bash loop list?
...n. (At least, it doesn't appear on Solaris 8, and I don't think it was in AIX 4.3 either.) I guess the rest of us may be stuck with piping to xargs...
– Michael Ratanapintha
Nov 19 '08 at 6:00
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