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How can I check for “undefined” in JavaScript? [duplicate]
...ined, why are you blindly integrating untested library code into your code base? Or even simpler: a linting tool.)
Also, like the typeof approach, this technique can "detect" undeclared variables:
if (window.someVar === undefined) {
doSomething();
}
But both these techniques leak in their...
How do I write unencoded Json to my View using Razor?
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Rails where condition using NOT NIL
...haining where conditions is simply building an AST, it doesn't hit the database until you hit a terminal method like each or to_a. Building the query isn't a performance concern; what you're requesting from the database is.
– Adam Lassek
Aug 20 '16 at 0:00
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Setting href attribute at runtime
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Ruby Regexp group matching, assign variables on 1 line
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Store query result in a variable using in PL/pgSQL
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What is an SDL renderer?
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Upload files with HTTPWebrequest (multipart/form-data)
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Based on the code provided above I added support for multiple files and also uploading a stream directly without the need to have a local file.
To upload files to a specific url including some post params do the following:
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Is there an advantage to use a Synchronized Method instead of a Synchronized Block?
...ignature could be the difference in decision. In theory anyway. I wouldn't base a design decision on a single bytecode instruction being saved, that seems like a terrible idea. But still, it is a difference. =)
– corsiKa
Oct 21 '14 at 14:19
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Select distinct values from a table field
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