I am working on 'how to access elements randomly from an array in javascript'. I found many links regarding this. Like: Get random item from JavaScript array var item = items[Math.floor(Math.random()*items.length)]; But in this, we can choose only one item from the array. If we want more than one elements then how can we achieve this? How can we get more than one element from an array?

Moderator note: Please resist the urge to edit the code or remove this notice. The pattern of whitespace may be part of the question and therefore should not be tampered with unnecessarily. If you are in the "whitespace is insignificant" camp, you should be able to accept the code as is. Is it ever possible that (a== 1 && a ==2 && a==3) could evaluate to true in JavaScript? This is an interview qu

Given integer values x and y, C and C++ both return as the quotient q = x/y the floor of the floating point equivalent. I'm interested in a method of returning the ceiling instead. For example, ceil(10/5)=2 and ceil(11/5)=3. The obvious approach involves something like: q = x / y; if (q * y < x) ++q; This requires an extra comparison and multiplication; and other methods I've seen (used in fact) i

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Paul's solution provides a simple, general solution. The question asks for the "the fastest and simplest way". Let's address the fastest part too. We'll arrive at our final, fastest code in an iterative manner. Benchmarking each iteration can be found at the end of the answer. All the solutions and the benchmarking code can be found on the Go Playground. The code on the Playground is a test file,

I have been researching the same thing for a few days. I believe omniauth-twitter does not work with Twitter reverse authentication. I think the solution is to send the oauth_token and oauth_token_secret you received from the reverse authentication process on iOS, to a custom endpoint in your application. Note, I am in the process of implementing this myself; it should work, but it's not tested ye

Is there a built in way, or reasonably standard package that allows you to convert a standard UUID into a short string that would enable shorter URL's? I.e. taking advantage of using a larger range of characters such as [A-Za-z0-9] to output a shorter string. I know we can use base64 to encode the bytes, as follows, but I'm after something that creates a string that looks like a "word", i.e. no +

I am a Perl person and I have made Hashes like this for a while: my %date; #Assume the scalars are called with 'my' earlier $date{$month}{$day}{$hours}{$min}{$sec}++ Now I am learning Ruby and I have so far found that using this tree is the way to do many keys and a value. Is there any way to use the simple format that I use with Perl using one line? @date = { month => { day => { hours => { min =>

TypeScript 1.5 now has decorators. Could someone provide a simple example demonstrating the proper way to implement a decorator and describe what the arguments in the possible valid decorator signatures mean? declare type ClassDecorator = <TFunction extends Function>(target: TFunction) => TFunction | void; declare type PropertyDecorator = (target: Object, propertyKey: string | symbol) => void; dec