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What special characters must be escaped in regular expressions?
...eSQL, PowerGREP, PowerShell, Python, REALbasic, Real Studio, Ruby, TCL, VB.Net, VBScript, wxWidgets, XML Schema, Xojo, XRegExp.PCRE compatibility may vary
Anywhere: . ^ $ * + - ? ( ) [ ] { } \ |
Legacy RegEx Flavors (BRE/ERE)
Includes awk, ed, egrep, emacs, GNUlib, grep, PHP (ereg), MySQL, ...
Only variables should be passed by reference
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In php7 warning will be still issued. php.net/manual/en/…
– kosta
Sep 30 '16 at 8:28
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Representing null in JSON
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Let's evaluate the parsing of each:
http://jsfiddle.net/brandonscript/Y2dGv/
var json1 = '{}';
var json2 = '{"myCount": null}';
var json3 = '{"myCount": 0}';
var json4 = '{"myString": ""}';
var json5 = '{"myString": "null"}';
var json6 = '{"myArray": []}';
console.log(JSON.pa...
Generate Java classes from .XSD files…?
...hink the removal of this from the JDK should be an issue, because the java.net project (linked in the answer) is probably going to stay.
– stmoebius
Sep 14 '16 at 13:24
1
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Inserting a text where cursor is using Javascript/jquery
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jsfiddle.net/NaHTw/802 is your solution with a little extra added to replace the selected area with what's pasted
– patrick
Dec 20 '15 at 1:07
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Why should I use IHttpActionResult instead of HttpResponseMessage?
...s of IHttpActionResult over HttpResponseMessage mentioned in Microsoft ASP.Net Documentation:
Simplifies unit testing your controllers.
Moves common logic for creating HTTP responses into separate classes.
Makes the intent of the controller action clearer, by hiding the low-level detail...
How can I catch a 404?
...neral exception handler. This is the way to go!
– Lionet Chen
Feb 8 '17 at 3:55
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R: += (plus equals) and ++ (plus plus) equivalent from c++/c#/java, etc.?
... In other languages += can be applied to immutable types (like strings in .net). The operation simply creates a new object and assigns the given variable to that new object. Immutability is maintained and the variable is updated.
– SFun28
Apr 21 '11 at 13:35
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How to escape indicator characters (i.e. : or - ) in YAML
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Quotes:
"url: http://www.example-site.com/"
To clarify, I meant “quote the value” and originally thought the entire thing was the value. If http://www.example-site.com/ is the value, just quote it like so:
url: "http://www.example-site.com...
Express.js: how to get remote client address
... when a new TCP stream is established. [The] socket is an object of type
net.Socket. Usually users will not want to access this event. In
particular, the socket will not emit readable events because of how
the protocol parser attaches to the socket. The socket can also be
accessed at request...