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Simplest code for array intersection in javascript
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Use a combination of Array.prototype.filter and Array.prototype.includes:
array1.filter(value => array2.includes(value))
For older browsers, with Array.prototype.indexOf and without an arrow function:
array1.filter(function(n) {
return array2.indexOf(n) !== ...
What exactly does the “u” do? “git push -u origin master” vs “git push origin master”
I'm apparently terrible at using git, despite my best attempts to understand it.
4 Answers
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Safe String to BigDecimal conversion
... the string. Let's say I have this String: "1,000,000,000.999999999999999" and I want to get a BigDecimal out of it. What is the way to do it?
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jQuery vs jQuery Mobile vs jQuery UI?
I'm new to web development and there are just too many j* stuff out there. I wonder what are the differences between these frameworks?
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SSL certificate rejected trying to access GitHub over HTTPS behind firewall
...ith firewall/proxy thingies.
There is a better way than using http access and that is to use the ssh service offered by github on port 443 of the ssh.github.com server.
We use a tool called corkscrew. This is available for both CygWin (through setup from the cygwin homepage) and Linux using your f...
What is the difference between Collections.emptyList() and Collections.EMPTY_LIST
In Java, we have Collections.emptyList() and Collections.EMPTY_LIST . Both have the same property:
4 Answers
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Comparison of Android networking libraries: OkHTTP, Retrofit, and Volley [closed]
Two-part question from an iOS developer learning Android, working on an Android project that will make a variety of requests from JSON to image to streaming download of audio and video:
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Fast way to discover the row count of a table in PostgreSQL
...IN pg_namespace n ON n.oid = c.relnamespace
WHERE c.relname = 'mytable'
AND n.nspname = 'myschema'
Or better still
SELECT reltuples::bigint AS estimate
FROM pg_class
WHERE oid = 'myschema.mytable'::regclass;
Faster, simpler, safer, more elegant. See the manual on Object Identifier Type...
Get list of data-* attributes using javascript / jQuery
...ir associated value (this
includes booleans, numbers, objects,
arrays, and null). The data-
attributes are pulled in the first
time the data property is accessed and
then are no longer accessed or mutated
(all data values are then stored
internally in jQuery).
The jQuery.fn.data func...
How to compare DateTime in C#?
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Microsoft has also implemented the operators '<' and '>'. So you use these to compare two dates.
if (date1 < DateTime.Now)
Console.WriteLine("Less than the current time!");
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