1. String: a data type used to represent text that is wrapped in quotes. Strings can contain alphabet characters in addition to spaces, numbers, and special characters.
- Ex: "this is a string"
2. Integer: a whole number (positive, negative, or zero)
- Ex: 2, 9, -15, 9282
In JavaScript you can assign an integer value as a number (you can open the JavaScript console in Chrome by clicking Command + Option + J) :
var number = 5;3. Float: a number with decimal points (positive or negative)
- Ex: -3.4, 0.02, 91.23
4. Boolean: true or false/ can be used to check combinations (if a password is over 8 characters and has both a letter and number)
- Ex: true or false
5. Array: a data structure that represents a group of things/used to organize data so that a related set of values can be easily sorted or searched. You can have an array of strings, integer/floats, or booleans.
- Ex: [12, 2, 4, 9, 10, 12, 4, 3] or ["Tim, "John", "Henry", "Bob"] or [false, true, true, false, false, true, false]
6. Object: (for JavaScript) a collection of key-value pairs. Similar to an array in that it's a collection of things, but in the case of an object, we are pairing data together. Sometimes referred to as a dictionary. Ask yourself, "Is this a collection of data where the pairing of items matters?" (keys are first names, values are last names).
- Ex: {"Mod 0": "Tim and David", "Mod 1": "Mike and Sal"}