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Why would $_FILES be empty when uploading files to PHP?
...ES, not smart quotes pasted in from Word OR from a website blog (WordPress converts straight quotes to angle quotes!). If you have multiple forms on the page, make sure they both have this attribute. Type them in manually, or try straight single quotes typed in manually.
Make sure you do not have tw...
How to concatenate two IEnumerable into a new IEnumerable?
...erator will attempt to use the two passed-in enumerable items (call them A and B) in sequence. If the passed-in enumerables represent sequences which will not change during the lifetime of Cat, and which can be read from without side-effects, then Cat may be used directly. Otherwise, it may be a g...
Is there a way to make ellipsize=“marquee” always scroll?
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I have been facing the problem and the shortest solution I have come up with is to create a new class derived from TextView.
The class should override three methods onFocusChanged, onWindowFocusChanged and isFocused to make the TextView all focused.
@Over...
XML parsing of a variable string in JavaScript
... it will read XML directly from strings or URLs and you can also use it to convert the XML into JSON.
Here's an example of what you can do with Marknote:
var str = '<books>' +
' <book title="A Tale of Two Cities"/>' +
' <book title="1984"/>' +
'<...
How to find the kth largest element in an unsorted array of length n in O(n)?
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This is called finding the k-th order statistic. There's a very simple randomized algorithm (called quickselect) taking O(n) average time, O(n^2) worst case time, and a pretty complicated non-randomized algorithm (called introselect) taking O(n) worst case time. There's some info on Wikipedia, bu...
Create a dictionary on a list with grouping
...ion that you want to search by. The trick is to create a grouping and then convert it to a dictionary, as follows:
Dim qry = (From acs In ActualSales _
Group By acs.ProductID Into Group _
Select ProductID, Months = Group.ToDictionary(Function(c) c.Period) _
)...
Any reason to prefer getClass() over instanceof when generating .equals()?
...not be considered meaningful beyond the fact that the class in question is convertible to the base class, the return from getClass() should be considered like any other property which must match for instances to be equal.
– supercat
Apr 16 '14 at 16:41
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What is the difference between Reader and InputStream?
What is the difference between Reader and InputStream?
And when to use what?
If I can use Reader for reading characters why I will use inputstream, I guess to read objects?
...
Advantages of Antlr (versus say, lex/yacc/bison) [closed]
...as-is. To use ANTLR (or any other LL parser generator), you would need to convert this grammar to something that is not left-recursive. However, Bison has no problem with grammars of this form. You would need to declare '+' and '-' as left-associative operators, but that is not strictly required ...
Using ECMAScript 6
...s)
Using Babel in your development pipeline will automatically transpile (convert) your JavaScript to be cross-browser compatible. Or, if you're using TypeScript, you can rest easy; your code is already getting transpiled.
Don't want to setup a transpiler (such as Babel/Typescript), or do yo...