bradtraversy

MongoDB Cheat Sheet

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tomsihap

# Find the latest version on https://github.com/creationix/nvm#install-script
$ curl -o- https://raw.githubusercontent.com/creationix/nvm/v0.33.11/install.sh | bash

# Add in your ~/.zshrc the following:
 export NVM_DIR=~/.nvm
 [ -s "$NVM_DIR/nvm.sh" ] && . "$NVM_DIR/nvm.sh"
 
$ source ~/.zshrc

juanbrujo

{
    "regiones": [
        {
            "region": "Arica y Parinacota",
            "comunas": ["Arica", "Camarones", "Putre", "General Lagos"]
        },
        {
            "region": "Tarapacá",
            "comunas": ["Iquique", "Alto Hospicio", "Pozo Almonte", "Camiña", "Colchane", "Huara", "Pica"]
        },

scottopolis

// we have an array of objects, we want to remove one object using only the id property
const apps = [{id:34,name:'My App',another:'thing'},{id:37,name:'My New App',another:'things'}];

// get index of object with id of 37
const removeIndex = apps.findIndex( item => item.id === 37 );
// remove object
apps.splice( removeIndex, 1 );

joepie91

Terminology

• View: Also called a "template", a file that contains markup (like HTML) and optionally additional instructions on how to generate snippets of HTML, such as text interpolation, loops, conditionals, includes, and so on.
• View engine: Also called a "template library" or "templater", ie. a library that implements view functionality, and potentially also a custom language for specifying it (like Pug does).
• HTML templater: A template library that's designed specifically for generating HTML. It understands document structure and thus can provide useful advanced tools like mixins, as well as more secure output escaping (since it can determine the right escaping approach from the context in which a value is used), but it also means that the templater is not useful for anything other than HTML.
• String-based templater: A template library that implements templating logic, but that has no understanding of the content it is generating - it simply concatenates together strings, potenti

donpandix

var Fn = {
	// Valida el rut con su cadena completa "XXXXXXXX-X"
	validaRut : function (rutCompleto) {
		if (!/^[0-9]+[-|‐]{1}[0-9kK]{1}$/.test( rutCompleto ))
			return false;
		var tmp 	= rutCompleto.split('-');
		var digv	= tmp[1]; 
		var rut 	= tmp[0];
		if ( digv == 'K' ) digv = 'k' ;
		return (Fn.dv(rut) == digv );

jaimeguaman

/^(\+?56)?(\s?)(0?9)(\s?)[98765432]\d{7}$/