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What's the difference between `on` and `live` or `bind`?
...ple").live( fn ) = jQuery( document ).on( "click", "#example", fn )
I can confirm this directly from jQuery source:
bind: function( types, data, fn ) {
return this.on( types, null, data, fn );
},
live: function( types, data, fn ) {
jQuery( this.context ).on( types, this.selector, data, fn...
How to provide different Android app icons for different gradle buildTypes?
...ifest>
build.gradle
android {
...
productFlavors{
Test{
versionName "$defaultConfig.versionName" + ".test"
resValue "string", "app_name", "App-Test"
manifestPlaceholders = [
appIcon: "@mipmap/ic_launcher_test",
...
how to permit an array with strong parameters
...me, DateTime, StringIO, IO,
ActionDispatch::Http::UploadedFile and Rack::Test::UploadedFile.
To declare that the value in params must be an array of permitted scalar values map the key to an empty array:
params.permit(:id => [])
In my app, the category_ids are passed to the create acti...
Test if object implements interface
...tance(object);
}
For example,
java.io.Serializable.class.isInstance("a test string")
evaluates to true.
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Find first element by predicate
...ns return a lazy stream). To convince you, you can simply do the following test:
List<Integer> list = Arrays.asList(1, 10, 3, 7, 5);
int a = list.stream()
.peek(num -> System.out.println("will filter " + num))
.filter(x -> x > 5)
.findFirst()
...
How to capture stdout output from a Python function call?
...tringIO() with redirect_stdout(f): logger = getLogger('test_logger') logger.debug('Test debug message') out = f.getvalue() self.assertEqual(out, 'DEBUG:test_logger:Test debug message') . It gives me an error: AssertionError: '' != 'Test debug message'...
Maximum concurrent Socket.IO connections
...enchmarking/
I wondered the same question, so I ended up writing a small test (using XHR-polling) to see when the connections started to fail (or fall behind). I found (in my case) that the sockets started acting up at around 1400-1800 concurrent connections.
This is a short gist I made, similar ...
Override ActiveRecord attribute methods
...ame, name.capitalize)
end
def name
read_attribute(:name).downcase # No test for nil?
end
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Synchronise ScrollView scroll positions - android
...l have to do that for ourselves.
First we need an interface.
package com.test;
public interface ScrollViewListener {
void onScrollChanged(ObservableScrollView scrollView, int x, int y, int oldx, int oldy);
}
Then we need to override the ScrollView class, to provide the ScrollViewListener ...
How to use regex in String.contains() method in Java
...
public static void main(String[] args) {
String test = "something hear - to - find some to or tows";
System.out.println("1.result: " + contains("- to -( \\w+) som", test, null));
System.out.println("2.result: " + contains("- to -( \\w+) som", test, 5));
}
static bo...