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How to find gaps in sequential numbering in mysql?
...". $MAX ." WHERE seq not in (SELECT column FROM table)" my syntax is php based
– me_
Oct 24 '17 at 23:57
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Insert a commit before the root commit in Git?
...efs/heads/newroot
git rm --cached -r .
git clean -f -d
# touch .gitignore && git add .gitignore # if necessary
git commit --allow-empty -m 'initial'
git rebase --onto newroot --root master
git branch -d newroot
(just to put everything in one place)
...
typedef fixed length array
...esent the type. Can I typedef char[3] to type24 ? I tried it in a code sample. I put typedef char[3] type24; in my header file. The compiler did not complain about it. But when I defined a function void foo(type24 val) {} in my C file, it did complain. I would like to be able to define functi...
jQuery: Select data attributes that aren't empty?
...
Answer that works with:
Empty strings:
If the attr must exist & could have any value (or none at all)
jQuery("[href]");
Missing attributes:
If attr could exist & if exist, must have some value
jQuery("[href!='']");
Or both:
If attr must exist &...
How to add a 'or' condition in #ifdef
...f neither of them are defined, you'd use an AND: #if !defined(CONDITION1) && !defined(CONDITION2).
– cp.engr
Feb 20 '17 at 18:26
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What is the purpose of std::make_pair vs the constructor of std::pair?
...tell it. That's what I could gather from various docs anyways.
See this example from http://www.cplusplus.com/reference/std/utility/make_pair/
pair <int,int> one;
pair <int,int> two;
one = make_pair (10,20);
two = make_pair (10.5,'A'); // ok: implicit conversion from pair<double,ch...
IntelliJ IDEA: Move line?
...nd use ↑/↓/←/→ for move one place to another
(16) Forward Move & Backward Move
Backward : Ctrl + Alt + ← (Left-Arrow)
Forward : Ctrl + Alt + → (Right-Arrow)
(17) Next/previous highlighted error
F2 or (Shift + F2)
(18) Open Java Doc
Select specific method name and press,
...
CSV new-line character seen in unquoted field error
the following code worked until today when I imported from a Windows machine and got this error:
9 Answers
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How to create a jQuery plugin with methods?
...a method directly,
$('selector').myplugin( 'mymethod1', 'argument' );
Example:
;(function($) {
$.fn.extend({
myplugin: function(options,arg) {
if (options && typeof(options) == 'object') {
options = $.extend( {}, $.myplugin.defaults, options );
...
How do I round to the nearest 0.5?
...ome small rounding errors, an operation such as 4.8 - 4.0 could give for example 0.799999... . In this case the code above would round to 4.5. Also better would to use Math.Floor instead of Math.Truncate, because right now negative numbers are not corretly rounded. I prefer the accepted answer,beca...