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How do short URLs services work?
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Since bit.ly won't let you change where one of their URLs points to, 301 makes sense. No need to remember the bit.ly version and recheck it.
– Joost Schuur
Aug 22 '10 at 19:10
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How does delete[] “know” the size of the operand array?
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ONE OF THE approaches for compilers is to allocate a little more memory and to store a count of elements in a head element.
Example how it could be done:
Here
int* i = new int[4];
compiler will allocate sizeof(int)*5 b...
Duplicate keys in .NET dictionaries?
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@Josh: You use Enumerable.ToLookup to create one.
– Jon Skeet
May 10 '10 at 13:43
30
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'any' vs 'Object'
...ssign any value to them - you can’t call arbitrary methods on them, even ones that actually exist: made me think that even calling toString is not allowed, when in fact I think they meant to say exist at runtime after reading you answer.
– Olga
Aug 30 '18 at ...
In C#, can a class inherit from another class and an interface?
...ke USB, serial, Ethernet, etc device. I am trying to develop a generic component/interface that I can use to write programs for all our devices that will help keep the common things (like connecting, disconnecting, getting firmware) the same for all of our applications.
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How to maintain aspect ratio using HTML IMG tag
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Don't set height AND width. Use one or the other and the correct aspect ratio will be maintained.
.widthSet {
max-width: 64px;
}
.heightSet {
max-height: 64px;
}
<img src="http://placehold.it/200x250" />
<img src="http://pla...
Mechanisms for tracking DB schema changes [closed]
...ch the changes are applied and a "down" method in which the changes are undone. A single command brings the database up to date, and can also be used to bring the database to a specific version of the schema. In Rails, migrations are kept in their own directory in the project directory and get check...
Piping command output to tee but also save exit code of command [duplicate]
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As mentioned below if you have more than a single pipe then you'll need to check the status of each command to know where it failed.
– Joshua Olson
Aug 23 '13 at 2:11
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...when you're targeting a browser that is NOT IE you have to use 2 comments, one before and one after the code. IE will ignore the code between them, whereas other browsers will treat it as normal code. The syntax for targeting non-IE browsers is therefore:
<!--[if !IE]-->
IE ignores this
<!...
Vim clear last search highlighting
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I think this is a much better solution than the one that's actually been accepted -- either this one or the other one where it's mapped to <ESC> instead.
– Stewart Johnson
Sep 1 '10 at 22:49
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