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Retrieving Property name from lambda expression
...ertyLambda.Body as MemberExpression;
if (member == null)
throw new ArgumentException(string.Format(
"Expression '{0}' refers to a method, not a property.",
propertyLambda.ToString()));
PropertyInfo propInfo = member.Member as PropertyInfo;
if (propInfo ==...
How to detect if URL has changed after hash in JavaScript
...hState(){
var ret = f.apply(this, arguments);
window.dispatchEvent(new Event('pushstate'));
window.dispatchEvent(new Event('locationchange'));
return ret;
})(history.pushState);
history.replaceState = ( f => function replaceState(){
var ret = f.apply(this, arguments);
win...
Playing .mp3 and .wav in Java?
... will play mp3 files.
Example code:
String bip = "bip.mp3";
Media hit = new Media(new File(bip).toURI().toString());
MediaPlayer mediaPlayer = new MediaPlayer(hit);
mediaPlayer.play();
You will need the following import statements:
import java.io.File;
import javafx.scene.media.Media;
import j...
How to convert URL parameters to a JavaScript object?
...is issue.
This includes using URLSearchParams and iterators
let params = new URLSearchParams('abc=foo&def=%5Basf%5D&xyz=5');
params.get("abc"); // "foo"
Should your use case requires you to actually convert it to object, you can implement the following function:
function paramsToObject(...
C# HttpClient 4.5 multipart/form-data upload
...c async Task<string> Upload(byte[] image)
{
using (var client = new HttpClient())
{
using (var content =
new MultipartFormDataContent("Upload----" + DateTime.Now.ToString(CultureInfo.InvariantCulture)))
{
content.Add(new StreamContent(new M...
App Inventor 2 CustomWebView 拓展：高级版Web浏览器，完美浏览现代Web前...
...age,defaultValue)
Event raised when JavaScript needs input from user
OnNewWindowRequest(id,isDialog,isPopup)
Event raised when new window is requested by webview with boolean ‘isDialog’ and ‘isPopup’
OnPermissionRequest(permissionsList)
Event raised when a website asks for specific...
How to implement a unique index on two columns in rails
... I am having weird problem after using this. Not able to run any new migration using rake db:migrate. Only able to run migration using version number rake db:migrate:up VERSION=20180411062714 one file at a time. I already had data on the table on which I did unique true on two column.
...
How do I get git to default to ssh and not https for new repositories
These days when I create a new repository on GitHub on the setup page I get:
6 Answers
...
How to programmatically clear application data
... 0; i < children.length; i++) {
boolean success = deleteDir(new File(dir, children[i]));
if (!success) {
return false;
}
}
}
// <uses-permission
// android:name="android.permission.CLEAR_APP_CACHE"></uses-permission...
Indexes of all occurrences of character in a string
...
String string = "bannanas";
ArrayList<Integer> list = new ArrayList<Integer>();
char character = 'n';
for(int i = 0; i < string.length(); i++){
if(string.charAt(i) == character){
list.add(i);
}
}
Result would be used like this :
for(Integer i : lis...