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Passing arguments to C# generic new() of templated type
... question, but new answer ;-)
The ExpressionTree version: (I think the fastests and cleanest solution)
Like Welly Tambunan said, "we could also use expression tree to build the object"
This will generate a 'constructor' (function) for the type/parameters given. It returns a delegate and accept th...
IntelliJ does not show 'Class' when we right click and select 'New'
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If it is your test directory, mark it as the Test Source Root (it will appear in green)
– Arnaud Denoyelle
Sep 17 '13 at 14:25
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How do I determine scrollHeight?
...rollHeight is a regular javascript property so you don't need jQuery.
var test = document.getElementById("foo").scrollHeight;
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Checking if an instance's class implements an interface?
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See: http://php.net/manual/en/function.class-implements.php
Performance Tests
Some simple performance tests show the costs of each approach:
Given an instance of an object
Object construction outside the loop (100,000 iterations)
____________________________________________
| class_implement...
C# List of objects, how do I get the sum of a property
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Here is example code you could run to make such test:
var f = 10000000;
var p = new int[f];
for(int i = 0; i < f; ++i)
{
p[i] = i % 2;
}
var time = DateTime.Now;
p.Sum();
Console.WriteLine(DateTime.Now - time);
int x = 0;
time = DateTime.Now;
foreach(var item in...
How to catch curl errors in PHP
...TTP errors, the following provides a better approach:
function curl_error_test($url) {
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$responseBody = curl_exec($ch);
/*
* if curl_exec failed then
* $responseBody...
How can I make my custom objects Parcelable?
... public void writeToParcel(Parcel dest, int flags) {
dest.writeStringArray(new String[] {this.id,
this.name,
this.grade});
}
public static final Parcelable.Creator CREATOR = new ...
Unable to set data attribute using jQuery Data() API
...t'));
$('#changeData').click(function() {
$('#foo').data('helptext', 'Testing 123');
// $('#foo').attr('data-helptext', 'Testing 123');
console.log($('#foo').data('data-helptext'));
return false;
});
See demo
Using the Chrome DevTools Console to inspect the DOM, the $('#foo').data('...
how to compare two elements in jquery [duplicate]
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Have you tested this? I'm pretty sure it won't return true because of the differences in the .selector property.
– Will Morgan
Mar 9 '10 at 13:35
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adding header to python requests module
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From http://docs.python-requests.org/en/latest/user/quickstart/
url = 'https://api.github.com/some/endpoint'
payload = {'some': 'data'}
headers = {'content-type': 'application/json'}
r = requests.post(url, data=json.dumps(payload), headers=headers)
You just need ...