var a = 'gogo';
var b.variable = document.querySelector('.element');
var abc.set = 'set method from the abc object{}';
var foo = 'stil not clear enough';
var contactFormSubmitButton = document.querySelector('#submit-button');
var scrollToTopButton = document.querySelector('#scrolltotop');
var navigationListItems = document.querySelectorAll('.nav li');
This variable names make sense!
Code Style
Variables style
This variable names doesn't make sense!
var this-is-very-bad-naming;
var _this_is_not_gonna_make_me_happy;
var this is even worse with spaces;
var thisStyleIsMuchBetter;
var youCanReadThisBetterRight;
var _dontMakeItToLong;
var camelCaseStyle;
This variable names make sense!
Code Style
Variable & Function names
Don't use the same names for functions & variable
var isNumber = 5;
var isNumber = function(number) {
return number * isNumber;
}
isNumber(isNumber);
Code Style
Always declare variables
var bodyTag, submitButtonContactForm, navigationListItems;