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Why are exclamation marks used in Ruby methods?
...
From themomorohoax.com:
A bang can used in the below ways, in order of my personal preference.
1) An active record method raises an error if the method does not do
what it says it will.
2) An active record method saves the record or a method saves an
object (e.g. strip!)
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Preloading images with jQuery
... @alex potentially, yeah. If the goal is to pre-load (which suggests an order of performance) then I'd prefer to see a raw JS option instead of jQuery dependent options.
– Charlie Schliesser
Jul 15 '14 at 23:57
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in a “using” block is a SqlConnection closed on return or exception?
...FROM CorporateOffice
WHERE HeadUpAss = 1 AND Title LIKE 'C-Level%'
ORDER BY IntelligenceQuotient DESC
";
using (SqlConnection conn = new SqlConnection(connString))
{
using (SqlCommand comm = new SqlCommand(selectStatement, conn))
{
try
{
conn.Open();
...
Disabling implicit animations in -[CALayer setNeedsDisplayInRect:]
...ppropriate key. For example, I use
NSDictionary *newActions = @{
@"onOrderIn": [NSNull null],
@"onOrderOut": [NSNull null],
@"sublayers": [NSNull null],
@"contents": [NSNull null],
@"bounds": [NSNull null]
};
layer.actions = newActions;
to disable fade in / out animations on...
Make an existing Git branch track a remote branch?
...uture. git branch [-u|--set-upstream-to] has been introduced with a saner order of arguments.
…
It was tempting to say git branch --set-upstream origin/master, but that tells Git to arrange the local branch "origin/master" to integrate with the currently checked out branch, which is hig...
Java RegEx meta character (.) and ordinary dot?
...ep it means "word boundary".
So write -?\d+\.\d+\$ to match 1.50$, -2.00$ etc. and [(){}[\]] for a character class that matches all kinds of brackets/braces/parentheses.
If you need to transform a user input string into a regex-safe form, use java.util.regex.Pattern.quote.
Further reading: Jan Go...
What is the difference between a deep copy and a shallow copy?
... which stores multiple data items. In python we have tuple,list,dictionery,etc
– Murphy
Aug 9 '16 at 3:58
2
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'git status' shows changed files, but 'git diff' doesn't
... changing core.autocrlf configuration or the text attribute in
order to correct files added with wrong CRLF/LF line endings.
This option implies -u.
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Finding ALL duplicate rows, including “elements with smaller subscripts”
... duplicated. Once that is done you can use Duplicated column for filtering etc.
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How to update a value, given a key in a hashmap?
...bunch of other useful methods, such as putIfAbsent, getOrDefault, forEach, etc.
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