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Solving “The ObjectContext instance has been disposed and can no longer be used for operations that
... done with the work at hand. In the case of ASP.NET, a unit of work is typically the HTTP request being handled.
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How to get text box value in JavaScript
...d attribute of the input to txtJob. Your browser is acting quirky when you call getElementById.
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Difference between dict.clear() and assigning {} in Python
In python, is there a difference between calling clear() and assigning {} to a dictionary? If yes, what is it?
Example:
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Prevent browser from loading a drag-and-dropped file
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You can add a event listener to the window that calls preventDefault() on all dragover and drop events.
Example:
window.addEventListener("dragover",function(e){
e = e || event;
e.preventDefault();
},false);
window.addEventListener("drop",function(e){
e = e || event;...
How can I dynamically create a selector at runtime with Objective-C?
...@selector(MyMethodName:) but what I want to do is create a selector dynamically from an NSString . Is this even possible?
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How to obtain the query string from the current URL with JavaScript?
... "i"), "$1"));
}
// Would write the value of the QueryString-variable called name to the console
console.log(getQueryStringValue("name"));
In modern browsers
In modern browsers you have the searchParams property of the URL interface, which returns a URLSearchParams object. The returned ob...
How to update SQLAlchemy row entry?
...se, I suggest you post a new question showing what you are stuck on specifically.
– MarredCheese
May 20 at 17:00
Thank...
Pass in an array of Deferreds to $.when()
...t's a generic method, not specific to $.when - f.apply(ctx, my_array) will call f with this == ctx and the arguments set to the contents of my_array.
– Alnitak
Apr 11 '11 at 20:44
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How do I implement basic “Long Polling”?
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It's simpler than I initially thought.. Basically you have a page that does nothing, until the data you want to send is available (say, a new message arrives).
Here is a really basic example, which sends a simple string after 2-10 seconds. 1 in 3 chance of returning a...
Securely storing environment variables in GAE with app.yaml
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@obl - An App Engine app is automatically authenticated to its own datastore, no authentication details needed. It's pretty neat :-)
– Martin Omander
Jul 9 '19 at 14:31
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