VARIABLES, ARRAYS, & OBJECTS | Simple Javascript Project Tutorial & Training

FULL CODE + IMAGES + SLIDES @ http://blog.breakthru.solutions/learn-javascript-simple-project-rock-paper-scissors PLAYLIST: https://www.youtube.com/playlist?list=PLRcnnTsvnkLN0VUFnWMfxhW-20pWBT4cJ FOLLOW ME ON TWITTER: https://twitter.com/thepowerslacker Variables, Arrays, & Objects Variables Store data for later use Have names and values Declared with the var, let or const keywords let & const are not implemented yet but can be used with Babel Can store text (strings), numbers, booleans, and even functions Example: var animal = ‘zebra’; Arrays Variables that store multiple values. Can store any type of valueJust like variables Example: var animals = [‘zebra’, ‘monkey’, ‘lion’]; Brackets [ ]Declare variables by using brackets on the ends Access values with positionanimals[1] // returns monkeyAnimals[2] // returns lion Objects / Hashes Key-value pairs Declared with braces { } Access with key Example: var animals = { ‘jeffery’: ‘zebra’, ‘gordo’: ‘monkey’, ‘harambe’: ‘lion’ }; animals.harambe OR animals[‘harambe’] // returns lion Tip When using dynamic values (values that aren’t preset by you), use the brackets to access an object..

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