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October 23, 2014 21:53
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Which version reveals itself as correct immediately? Which is most profitable to use consistently?
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// Version 1 | |
var numbers1 = []; | |
for (var i = 1; i <= 100; i++) { | |
numbers1.push(i); | |
} | |
console.log("numbers1", numbers1); | |
// Version 2 | |
var numbers2 = []; | |
for (var i = 100; i > 0; i--) { | |
numbers2.push(i); | |
} | |
console.log("numbers2", numbers2); | |
// Version 3 - pragmatic programming | |
var _ = require('lodash'); | |
var numbers3 = _.range(1, 101); | |
console.log("numbers3", numbers3); | |
// Version 4 | |
var numbers4 = []; | |
for (var i = 1; i < 101; i++) { | |
numbers4.push(i); | |
} | |
console.log("numbers4", numbers4); | |
// Ignore this one, it's just meant to contrast w/ the others | |
// Version 5 - Example of obvious beauty via ruby | |
// numbers5 = (1..100).map { |num| num } | |
// puts "numbers5 #{numbers5}" |
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I think you have to have library knowledge to get #3
What is a range is it does it return an array. I think in an app that uses alot of lodash #3 is the simplest but straight JS #1 is the cononical