Vars and Prims

Keyword	Example Declaration	Usage
const	const z = 5;	When var will be constant (only set once)
let	let a, b;	When var will be set multiple times
var	var a, b;	Older style, it is recommended to use the above two only

Keyword

Example Declaration

Usage

const

const z = 5;

When var will be constant (only set once)

let

let a, b;

When var will be set multiple times

var

var a, b;

Older style, it is recommended to use the above two only

Number Example

NOTE WELL -- we're just playing here -- normally we would not be hard-coding values like the 7 and 2 -- there are exceptions (per usual) -- one could be test code.

		const
			a = 7,
			b = 2;
		let sum, sumSquared;
		sum = a + b;
		sumSquared = sum * sum;
		prn("sum: " + sum);
		prn("sumSquared: " + sumSquared);

Adding a string variable.

NOTE WELL -- we're just playing here -- normally we would not be hard-coding values like the 7 and 2 -- there are exceptions (per usual) -- one could be test code.

		const
			a = 7,
			b = 2,
			label1 = 'sum: ',
			label2 = 'sumSquared: ';
		let sum, sumSquared;
		sum = a + b;
		sumSquared = sum * sum;
		prn(label1 + sum);
		prn(label2 + sumSquared);