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Browser detection in JavaScript? [duplicate]
...ction(){
var ua= navigator.userAgent, tem,
M= ua.match(/(opera|chrome|safari|firefox|msie|trident(?=\/))\/?\s*(\d+)/i) || [];
if(/trident/i.test(M[1])){
tem= /\brv[ :]+(\d+)/g.exec(ua) || [];
return 'IE '+(tem[1] || '');
}
if(M[1]=== 'Chrome'){
tem= ua.ma...
How to indicate param is optional using inline JSDoc?
...
From official documentation:
Optional parameter
An optional parameter named foo.
@param {number} [foo]
// or:
@param {number=} foo
An optional parameter foo with default value 1.
@param {number} [foo=1]
...
Download a single folder or directory from a GitHub repo
...s://github.com/lodash/lodash/trunk/test
You might not see any activity immediately because Github takes up to 30 seconds to convert larger repositories, so be patient.
Full URL format explanation:
If you're interested in master branch, use trunk instead. So the full path is trunk/folde...
Double vs. BigDecimal?
I have to calculate some floating point variables and my colleague suggest me to use BigDecimal instead of double since it will be more precise. But I want to know what it is and how to make most out of BigDecimal ?
...
How to configure Git post commit hook
...
As mentioned in "Polling must die: triggering Jenkins builds from a git hook", you can notify Jenkins of a new commit:
With the latest Git plugin 1.1.14 (that I just release now), you can now do this more >easily by simpl...
postgresql port confusion 5433 or 5432?
.../services is only advisory, it's a listing of well-known ports. It doesn't mean that anything is actually running on that port or that the named service will run on that port.
In PostgreSQL's case it's typical to use port 5432 if it is available. If it isn't, most installers will choose the next fr...
What to do Regular expression pattern doesn't match anywhere in string?
...hem, so it's not perfect, but it should suffice for sane inputs.
Here's some Perl (pseudo)code to show you what I mean:
my $html = readLargeInputFile();
my @input_tags = $html =~ m/
(
<input # Starts with "<input"
(?=[^>]*?type="hidden") # Use...
How can I determine the direction of a jQuery scroll event?
I'm looking for something to this effect:
25 Answers
25
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How does Haskell printf work?
...ty is second to none only to dependently-typed languages. But there is some deep magic going on with Text.Printf that seems rather type-wonky.
...
How do I update an entity using spring-data-jpa?
...
Identity of entities is defined by their primary keys. Since firstname and lastname are not parts of the primary key, you cannot tell JPA to treat Users with the same firstnames and lastnames as equal if they have different userIds.
So, if you want to update a User identified by its firstnam...