Javascript Variables

Variables Variables are concorders. They hold or contain pieces of cultivation that you necessity to use. A whizz inconsistent can contain ace piece of information at a time. Because JavaScript is a fully grown language, you are non required to specify what type of information the varying will contain (integer, float, string, Boolean, etc.) Variables -can begin with upper or frown case letters, $ or _ - has to be a single un strikeable scripture (no spaces) - are case sensitive - older browsers whitethorn not recognize the $ -key oral communication cannot be utilise as inconsistent name -define employ var as a description and the name (var x) -can be initialized (var x = 5 - have to be declared (with or without a value) before being used -variables are not placed wrong quotes -adding variables together is through with a plus sign VARIABLES A variable name (or identifier) must begin with a letter or an emphasize and cannot be a reticent word. Variable names are case sensitive and may not contain a space. Table A-3: legitimate and Invalid Variable Names | legal Variable Names |Invalid Variable Names | |cust_id |cust.

id | |Cust_Id |%Cust_Id | |_cust_id |+cust_indentifier | |cust_id_ trope ! |Cust id number | |CustIdNumber |9custIDNumber | |Custid1 |Cust ID | |_case |case | Reserved words (also called keywords) are words with finicky meaning to a programming language. A reserved word should not be used as a JavaScript variable, function, method, or object name. Reserved Words...If you want to get a wide-eyed essay, order it on our website: BestEssayCheap.com

If you want to get a full essay, visit our page: cheap essay