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How can I check if a single character appears in a string?
...e of the character in
the character sequence represented by this object, or -1 if the
character does not occur.
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Is the SQL WHERE clause short-circuit evaluated?
Are boolean expressions in SQL WHERE clauses short-circuit evaluated
?
14 Answers
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How to save username and password with Mercurial?
...rcurial in a personal project, and I have been typing my username and password every time I want to push something to the server.
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How to reset Android Studio
...ndows (but it should be similar on any OS, you will just need to find the correct location yourself - google search would help with that).
On Windows:
Go to your User Folder - on Windows 7/8 this would be:
[SYSDRIVE]:\Users\[your username] (ex. C:\Users\JohnDoe\)
In this folder there should ...
Cartesian product of multiple arrays in JavaScript
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2020 Update: 1-line (!) answer with vanilla JS
Original 2017 Answer: 2-line answer with vanilla JS:
(see updates below)
All of the answers here are overly complicated, most of them take 20 lines of code or even more.
This example uses just two lines of vanilla JavaScript,...
CSS: 100% font size - 100% of what?
.... I understand this is 'the same size in all browsers'. I also read this, for instance:
9 Answers
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Does Typescript support the ?. operator? (And, what's it called?)
Does Typescript currently (or are there plans to) support the safe navigation operator of ?.
14 Answers
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Regex select all text between tags
... (replacing pre with whatever text you want) and extract the first group (for more specific instructions specify a language) but this assumes the simplistic notion that you have very simple and valid HTML.
As other commenters have suggested, if you're doing something complex, use a HTML parser.
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Type List vs type ArrayList in Java [duplicate]
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Almost always List is preferred over ArrayList because, for instance, List can be translated into a LinkedList without affecting the rest of the codebase.
If one used ArrayList instead of List, it's hard to change the ArrayList implementation into a LinkedList one because ArrayLis...
ERROR 2006 (HY000): MySQL server has gone away
I get this error when I try to source a large SQL file (a big INSERT query).
20 Answers
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