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Making interface implementations async
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Neither of these options is correct. You're trying to implement a synchronous interface asynchronously. Don't do that. The problem is that when DoOperation() returns, the operation won't be complete yet. Worse, if an exception happens during the operatio...
How can I check if my python object is a number? [duplicate]
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Test if your variable is an instance of numbers.Number:
>>> import numbers
>>> import decimal
>>> [isinstance(x, numbers.Number) for x in (0, 0.0, 0j, decimal.Decimal(0))]
[True, True, True, True]
This uses ABCs and will work for all built-in number-like classes, and ...
Creating a favicon [closed]
How can I create a favicon for my website?
10 Answers
10
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Add a property to a JavaScript object using a variable as the name?
...ng bracket notation:
var obj = {
[key]: value
}
Where key can be any sort of expression (e.g. a variable) returning a value:
var obj = {
['hello']: 'World',
[x + 2]: 42,
[someObject.getId()]: someVar
}
share
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Does Dispose still get called when exception is thrown inside of a using statement?
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Yes, using wraps your code in a try/finally block where the finally portion will call Dispose() if it exists. It won't, however, call Close() directly as it only checks for the IDisposable interface being implemented and hence the Dispose() method.
See also:
Intercepting an exception inside...
Why does “return list.sort()” return None, not the list?
I've been able to verify that the findUniqueWords does result in a sorted list . However, it does not return the list. Why?
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Intermittent log4net RollingFileAppender locked file issue
...MinimalLock" />
to your <appender /> element. There is some performance impact because this means that log4net will lock the file, write to it, and unlock it for each write operation (as opposed to the default behavior, which acquires and holds onto the lock for a long time).
One implica...
Accessing the web page's HTTP Headers in JavaScript
...t.
Use the following JavaScript code to get all the HTTP headers by performing a get request:
var req = new XMLHttpRequest();
req.open('GET', document.location, false);
req.send(null);
var headers = req.getAllResponseHeaders().toLowerCase();
alert(headers);
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Highlight label if checkbox is checked
Is there a non-javascript way of changing the color of a label when the corresponding checkbox is checked?
4 Answers
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Is it possible to make a Tree View with Angular?
...isplay data in a tree structure in a web app. I was hoping to use Angular for this task.
14 Answers
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