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Greedy vs. Reluctant vs. Possessive Quantifiers
... another character, etc. So a greedy quantifier checks possible matches in order from longest to shortest.
A reluctant quantifier tells the engine to start with the shortest possible piece of the string. If it matches, the engine can continue; if not, it adds one character to the section of the stri...
When to use inline function and when not to use it?
...f the library call the old implementation
when developing a library, in order to make a class extensible in the future you should:
add non-inline virtual destructor even if the body is empty
make all constructors non-inline
write non-inline implementations of the copy constructor and assignment...
Does Java 8 provide a good way to repeat a value or function?
...wenting To anyone with experience in FP, code which revolves around higher-order functions is a pure win. To anyone without that experience, it's time to upgrade your skills---or risk being left behind in the dust.
– Marko Topolnik
Aug 30 '13 at 12:14
...
Stash only one file out of multiple files that have changed with Git?
... you might want to add: git stash save -p my stash message; since the order of the argumenst is not very intuitive...
– Chris Maes
Apr 23 '15 at 9:12
16
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What are the disadvantages of using persistent connection in PDO
...
I hope I had read this answer before running SELECT orders.* FROM orders LEFT JOIN items USING(item_id)
– Ast Derek
Jul 26 '10 at 18:09
31
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Using braces with dynamic variable names in PHP
...s, properties, and methods will now be evaluated strictly in left-to-right order, as opposed to the mix of special cases in PHP5. The examples below show how the order of evaluation has changed.
Case 1 : $$foo['bar']['baz']
PHP5 interpetation : ${$foo['bar']['baz']}
PHP7 interpetation : ${$foo}['ba...
What's so wrong about using GC.Collect()?
...l)
' Call the Garbage Collector twice. The GC needs to be called twice in order to get the
' Finalizers called - the first time in, it simply makes a list of what is to be finalized,
' the second time in, it actually does the finalizing. Only then will the object do its
' automatic ReleaseComObjec...
Does JavaScript have “Short-circuit” evaluation?
...'s not exactly how the code is evaluated and we'll need to delve deeper in order to fully understand.
How exactly is the && and || interpreted?:
It's time to look "under the hood of the javascript engine". Let's consider this practical example:
function sanitise(x) {
if (isNaN(x)...
Flexbox: center horizontally and vertically
...: center;
justify-content: center;
}
.row {
width: auto;
border: 1px solid blue;
}
.flex-item {
background-color: tomato;
padding: 5px;
width: 20px;
height: 20px;
margin: 10px;
line-height: 20px;
color: white;
font-weight: bold;
font-si...
git pull from master into the development branch
... command can be done at any point before the merge, i.e., you can swap the order of the fetch and the checkout, because fetch just goes over to the named remote (origin) and says to it: "gimme everything you have that I don't", i.e., all commits on all branches. They get copied to your repository, ...