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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 ...
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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How do you parse and process HTML/XML in PHP?
...ing against DNSBL engine, this will also be used to look out for malicious sites / content, also the as i have built my site around a framework i have built it needs to be clean, readable, and well structured. SimpleDim is great but the code is slightly messy
– RobertPitt
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convert ArrayList to JSONArray
...s
import com.google.gson.Gson
import com.google.gson.reflect.TypeToken
fun <T> Gson.convertToJsonString(t: T): String {
return toJson(t).toString()
}
fun <T> Gson.convertToModel(jsonString: String, cls: Class<T>): T? {
return try {
fromJson(jsonString, cls)
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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'...
Protecting Java Source Code From Being Accessed [closed]
... when you created a document can go to the trusted third party, often a website, to verify your proof of creation time. These have been used in court cases for intellectual property disputes so they are a very strong form of evidence. They're the standard way to accomplish the proof you're seeking. ...
Are global variables in PHP considered bad practice? If so, why?
...ins the system configuration, and when I nead to access this variable in a function, I do global $var; .
6 Answers
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array_push() with key value pair
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Warning: $a['123'] = 456; - string '123' is converted to integer key 123.
– bancer
Jul 2 at 12:58
1
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