-
Locate the path to the interpreter for the language you are writing in with the
which
command.which node which python which bash which ruby
-
Add that path as an interpreter directive (using
#!
) on the first line of your script. For example ifwhich node
returned/usr/local/bin/node
, the first line of your script should be:
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/** | |
Conform. We have a collection of objects with the possibility of having unique attributes. | |
We would like to ensure that each object in the collection has the same attributes. Handy for passing objects | |
to a CSV function that expects all objects to conform: | |
Example: var coll = [{a : "a", b : ""}, {a : "a", c : "c"}, {a : "a", d : "d", f : "f"}]; | |
conform(coll); | |
@param array array of objects. | |
*/ |
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/* | |
* object.watch polyfill | |
* | |
* 2012-04-03 | |
* | |
* By Eli Grey, http://eligrey.com | |
* Public Domain. | |
* NO WARRANTY EXPRESSED OR IMPLIED. USE AT YOUR OWN RISK. | |
*/ |
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let seating = (people) => { | |
let result = []; | |
(function permutations (left, right) { | |
let current; | |
let before | |
let after; |
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function countLetters (string) { | |
let letters = {}; | |
for (let i = 0; i < string.length; i++) { | |
letters[string[i]] = letters[string[i]] + 1 || 1; | |
} | |
return letters; | |
} |
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const flatten = (...args) => { | |
let result = []; | |
args.forEach(arg => { | |
if (Array.isArray(arg)) { | |
arg.forEach(element => { | |
if (Array.isArray(element)) { | |
result = result.concat(flatten(element)); | |
} else { | |
result.push(element); | |
} |
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'use strict'; | |
/** | |
* Run through promises sequentially. Useful when breaking 1000s records into manageable chunks | |
*/ | |
function processFile (filename) { | |
return new Promise((superResolve, superReject) => { |
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set autoindent | |
set indentexpr=off | |
set expandtab | |
set tabstop=4 | |
set sw=4 | |
set textwidth=80 | |
set nohls | |
set noshowmatch | |
syntax enable |
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const net = require('net'); | |
const PORT = 6000; | |
const server = net.createServer((connection) => { | |
console.log('created server'); | |
connection.on('data', (data) => { | |
connection.write('pong\n'); | |
}); | |
connection.pipe(connection); |
This list is meant to be a both a quick guide and reference for further research into these topics. It's basically a summary of that comp sci course you never took or forgot about, so there's no way it can cover everything in depth. It also will be available as a gist on Github for everyone to edit and add to.
- Stores data elements based on an sequential, most commonly 0 based, index.
- Based on tuples from set theory.
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