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JavaScript by reference vs. by value [duplicate]
...le does change the underlying object.
So, to work through some of your examples:
function f(a,b,c) {
// Argument a is re-assigned to a new value.
// The object or primitive referenced by the original a is unchanged.
a = 3;
// Calling b.push changes its properties - it adds
//...
How does Haskell printf work?
...dependently-typed languages. But there is some deep magic going on with Text.Printf that seems rather type-wonky.
1 Answe...
Remove tracking branches no longer on remote
...ple way to delete all tracking branches whose remote equivalent no longer exists?
34 Answers
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What is a sealed trait?
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A sealed trait can be extended only in the same file as its declaration.
They are often used to provide an alternative to enums. Since they can be only extended in a single file, the compiler knows every possible subtypes and can reason about it.
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Window.open and pass parameters by post method
...lues in the HTML code), just open an empty window and post a form to it.
Example:
<form id="TheForm" method="post" action="test.asp" target="TheWindow">
<input type="hidden" name="something" value="something" />
<input type="hidden" name="more" value="something" />
<input type...
Is JavaScript a pass-by-reference or pass-by-value language?
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How to properly assert that an exception gets raised in pytest?
...ytest print traceback, so I would see where in the whatever function an exception was raised?
11 Answers
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Bash empty array expansion with `set -u`
...g a bash script which has set -u , and I have a problem with empty array expansion: bash appears to treat an empty array as an unset variable during expansion:
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How do you echo a 4-digit Unicode character in Bash?
...t, or any other, 4-digit Unicode character. Two-digit one's are easy. For example, echo -e "\x55", .
18 Answers
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Convert JavaScript string in dot notation into an object reference
...lso somewhat horrified. If one needs to convert dot-notation strings like "x.a.b.c" into references, it could (maybe) be a sign that there is something very wrong going on (unless maybe you're performing some strange deserialization).
That is to say, novices who find their way to this answer mu...