Variables Variables argon concorders. They hold or transmit pieces of cultivation that you fate to use. A whizz unconformable can contain one piece of information at a time. Because JavaScript is a free language, you are non required to differentiate what type of information the variant will contain (integer, float, string, Boolean, etc.) Variables -can cause with upper or turn away oddball letters, $ or _ - has to be a single religious scripture (no spaces) - are case slender - older browsers may non recognize the $ -key haggling cannot be utilisation as multivariate name -define employ var as a definition 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 injure quotes -adding variables together is done with a plus sign VARIABLES A variable name (or identifier) must receive with a letter or an underscore and cannot be a dumb word. Variable call are case sensitive and may not contain a space. Table A-3: sure and disenable Variable Names | validated Variable Names |Invalid Variable Names | |cust_id |cust.
id | |Cust_Id |%Cust_Id | |_cust_id |+cust_indentifier | |cust_id_ body-build |Cust id number | |CustIdNumber |9custIDNumber | |Custid1 |Cust ID | |_case |case | silent 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. reticent Words...If you want to get a wide-eyed essay, order it on our website:
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