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How to use Active Support core extensions
... Load Core Extensions".
Active Support's methods got broken into smaller groups in Rails 3, so we don't end up loading a lot of unneeded stuff with a simple require 'activesupport'. Now we have to do things like
require 'active_support/core_ext/object/blank'
If you don't care about granularity...
Determine a user's timezone
..."locale" is emphatically not the user's geographic location. "Locale" is a group of settings such as language, number format, calendar, etc. For example, the de_DE locale specifies German as default language, the euro as default currency, commas as decimal separator, periods as the thousands separat...
Why do x86-64 systems have only a 48 bit virtual address space?
... apparently see as obvious, that the 8088 should be classified in the same group as the Z80, 8080, 8085 etc. The question of the width of the data bus seems trivial in that context
– Olof Forshell
Jul 18 '11 at 10:58
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Rounded UIView using CALayers - only some corners - How?
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Nice one, this helped me a lot on grouped UITableView cell's selectedBackgroundViews :-)
– Luke47
Oct 27 '11 at 10:06
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How to evaluate a math expression given in string form?
...ion (using the ^ symbol), and a few basic functions like sqrt. It supports grouping using (...), and it gets the operator precedence and associativity rules correct.
public static double eval(final String str) {
return new Object() {
int pos = -1, ch;
void nextChar() {
...
How to dynamically build a JSON object with Python?
...then you're stuck with alphabetical order and not your preferred ordering, grouping and representation
– Jonathan
Sep 5 '17 at 19:16
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Unnamed/anonymous namespaces vs. static functions
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The front-end from Edison Design Group (EDG) is anything but experimental. It is almost certainly the most standard conforming C++ implementation in the world. The Intel C++ compiler uses EDG.
– Richard Corden
Oct 12 ...
PostgreSQL: Difference between text and varchar (character varying)
...habet. A query to get a frequency distribution (select count(*), field ... group by field) takes about 650 milliseconds, vs about 760 on the same data using a text field.
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How to add \newpage in Rmarkdown in a smart way?
...envir) : object 'opts_knit' not found Calls: <Anonymous> ... process_group.block -> call_block -> eval_lang -> eval -> eval Execution halted opts_knit$get works fine in the console though. ?
– keithpjolley
Sep 29 '18 at 17:34
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How to sort strings in JavaScript
...lowercase 'z'
When one would have expected special characters to all be "grouped" together in one place, except for the space special character maybe (which would always be the first character). That is, either all before numbers, or all between numbers and letters (lowercase & uppercase being...