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Replace one character with another in Bash
.... Example:
foo=" "
# replace first blank only
bar=${foo/ /.}
# replace all blanks
bar=${foo// /.}
See http://tldp.org/LDP/abs/html/string-manipulation.html for more details.
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What's the scope of the “using” declaration in C++?
...
... which is generally a bad thing.
– Catskul
Feb 16 '11 at 5:25
17
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variable === undefined vs. typeof variable === “undefined”
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For undeclared variables, typeof foo will return the string literal "undefined", whereas the identity check foo === undefined would trigger the error "foo is not defined".
For local variables (which you know are declared somewhere), no such error would occu...
JavaScript regex multiline flag doesn't work
...ipt 2018.
https://github.com/tc39/proposal-regexp-dotall-flag
const re = /foo.bar/s; // Or, `const re = new RegExp('foo.bar', 's');`.
re.test('foo\nbar');
// → true
re.dotAll
// → true
re.flags
// → 's'
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Merge git repo into branch of another repo
...epo Bar. I want to merge Bar with Foo, but only into a separate branch, called baz .
3 Answers
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Iterate over object keys in node.js
Since Javascript 1.7 there is an Iterator object, which allows this:
5 Answers
5
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How to define an empty object in PHP
...e objects of anonymous type in JavaScript:
//JavaScript
var myObj = {
foo: "Foo value",
bar: "Bar value"
};
console.log(myObj.foo); //Output: Foo value
So I always try to write this kind of objects in PHP like javascript does:
//PHP >= 5.4
$myObj = (object) [
"foo" => "Foo valu...
Adding HTML entities using CSS content
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Update: PointedEars mentions that the correct stand in for   in all css situations would be
'\a0 ' implying that the space is a terminator to the hex string and is absorbed by the escaped sequence. He further pointed out this authoritative description which sounds like a good solution to...
jQuery send string as POST parameters
...d out how to send $.post data as a string. the accepted answer does not at all help me with that. thank you.
– chiliNUT
Jun 27 '14 at 23:11
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Modulo operator with negative values [duplicate]
... at the end of that quote is what's important. (Though I think C99 may actually fix that choice.)
– Kerrek SB
Sep 29 '11 at 9:13
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