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Find and extract a number from a string
... NOTE: If the string contains multiple numbers, this answer will run them all together into a single number. E.g. "a12bcd345" results in "12345". (Which may be desirable or not, depending on the goal.) This is different than the top-voted Regex solution, which would return "12" for the case above. ...
Number of occurrences of a character in a string [duplicate]
...rge and (almost) entirely made up of repeated delimiters (&), it could allocate 12-24x the original size of the string due to object overheads in .Net. I would go with the second approach, and if that's not fast enough then write a for loop.
– Niall Connaughton
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Debugging iframes with Chrome developer tools
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In the Developer Tools in Chrome, there is a bar along the top, called the Execution Context Selector (h/t felipe-sabino), just under the Elements, Network, Sources... tabs, that changes depending on the context of the current tab. When in the Console tab there is a dropdown in that bar t...
Java's Interface and Haskell's type class: differences and similarities?
...d say that an interface is kind of like a type class SomeInterface t where all of the values have the type t -> whatever (where whatever does not contain t). This is because with the kind of inheritance relationship in Java and similar languages, the method called depends on the type of object th...
In Windows Azure: What are web role, worker role and VM role?
... to host the application in Windows Azure, so I created a web role. I actually want to know what these roles are for. What is their significance coding wise or storage wise?
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How to add calendar events in Android?
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how do I programmatically add an event to the user's calendar?
Which calendar?
Is there a common API they all share?
No, no more than there is a "common API they all share" for Windows calendar apps. There are some common data formats (e....
How to set caret(cursor) position in contenteditable element (div)?
....setStart(el.childNodes[2], 5)
range.collapse(true)
sel.removeAllRanges()
sel.addRange(range)
}
<div id="editable" contenteditable="true">
text text text<br>text text text<br>text text text<br>
</div>
<button id="button" onclick="setCaret()">f...
Disable Enable Trigger SQL server for a table
...nswered Sep 7 '09 at 7:54
Wael DalloulWael Dalloul
19.4k1111 gold badges4444 silver badges5555 bronze badges
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What does the `forall` keyword in Haskell/GHC do?
I'm beginning to understand how the forall keyword is used in so-called "existential types" like this:
8 Answers
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How do HTML parses work if they're not using regexp?
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Usually by using a tokeniser. The draft HTML5 specification has an extensive algorithm for handling "real world HTML".
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