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What is a Question Mark “?” and Colon “:” Operator Used for? [duplicate]
...so, does anyone know the standard term for them or where I can find more information on their use? I've read that they are similar to an 'if' 'else' statement.
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jQuery Event Keypress: Which key was pressed?
... handler function. While browsers use differing properties to store this information, jQuery normalizes the .which property so we can reliably use it to retrieve the key code.
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Converting an integer to a string in PHP
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Correct the mistake, please. The correct form should be: $s = (string)$v ? (string)$v : "0";
– nintyfan
Dec 26 '18 at 10:07
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How do I analyze a .hprof file?
...is mind-blowingly good for finding memory leaks etc -- including running a form of limited SQL (OQL) against the in-memory objects, i.e.
SELECT toString(firstName) FROM com.yourcompany.somepackage.User
Totally brilliant.
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how to change any data type into a string in python
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I wouldn't use repr(myvariable) - it often returns information about class type, memory address etc. It's more useful for debugging. Use str(myvariable) for conversion to string and unicode(variable) for conversion to unicode.
– Abgan
Jul ...
insert vs emplace vs operator[] in c++ map
...variants like using value_type or make_pair . While there is a lot of information about all of them and questions about particular cases, I still can't understand the big picture.
So, my two questions are:
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How do I remove a single file from the staging area (undo git add)?
... git rm --cached FILE stages file deletion, without deleting the file form the working tree. This is different than the question, which was about undoing git add.
– Sampo Smolander
Aug 18 '15 at 4:57
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Why isn't my Pandas 'apply' function referencing multiple columns working? [closed]
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do all apply strategies perform the same? I'm new to pandas and have always found apply slightly enigmatic but your strategy in [53-54] is easy for me to understand (and hopefully remember) ... on a large table is it as quick as the other form of apply...
Illegal pattern character 'T' when parsing a date string to java.util.Date
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Update for Java 8 and higher
You can now simply do Instant.parse("2015-04-28T14:23:38.521Z") and get the correct thing now, especially since you should be using Instant instead of the broken java.util.Date with the most recent versions of Java.
You should be using DateTimeFormatter instead...
Is there a template engine for Node.js? [closed]
...ade is pretty cool. I've just started using it, so can't speak to it's performance, but I like the syntax. And built-in support in Express is a plus.
– broofa
Nov 22 '10 at 13:41
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