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Abdulkadir Abdirahman cccabdalla

  • Mogadishu, Somalia
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@cccabdalla
cccabdalla / version_compare.js
Created January 11, 2021 19:41 — forked from pc035860/version_compare.js
Function to compare two version strings (e.g. "1.6.1" is smaller than "1.7"). Developed in order to answer http://stackoverflow.com/a/6832721/50079.
/**
* Compares two software version numbers (e.g. "1.7.1" or "1.2b").
*
* This function was born in http://stackoverflow.com/a/6832721.
*
* @param {string} v1 The first version to be compared.
* @param {string} v2 The second version to be compared.
* @param {object} [options] Optional flags that affect comparison behavior:
* <ul>
* <li>
@cccabdalla
cccabdalla / object_join.js
Created January 21, 2021 20:43 — forked from lucasdavila/object_join.js
Joining javascript key-value objects as string.
Object.prototype.join = function(glue, separator) {
var object = this;
if (glue == undefined)
glue = '=';
if (separator == undefined)
separator = ',';
return $.map(Object.getOwnPropertyNames(object), function(k) { return [k, object[k]].join(glue) }).join(separator);

Typing vagrant from the command line will display a list of all available commands.

Be sure that you are in the same directory as the Vagrantfile when running these commands!

Creating a VM

  • vagrant init -- Initialize Vagrant with a Vagrantfile and ./.vagrant directory, using no specified base image. Before you can do vagrant up, you'll need to specify a base image in the Vagrantfile.
  • vagrant init <boxpath> -- Initialize Vagrant with a specific box. To find a box, go to the public Vagrant box catalog. When you find one you like, just replace it's name with boxpath. For example, vagrant init ubuntu/trusty64.

Starting a VM

  • vagrant up -- starts vagrant environment (also provisions only on the FIRST vagrant up)
console.log(Number(Math.round(1.005 + "e2") + "e-2")) // 1.01
const roundAccurately = (number, decimalPlaces) => Number(Math.round(number + "e" + decimalPlaces) + "e-" + decimalPlaces)
console.log(roundAccurately(1.005, 2)) // 1.01