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Carlos Enrique Castañeda Gutiérrez
13,886 PointsIs it ok to have several "var" declarations through the code?
Hello:
Is it normal in Javascript (or JQuery) world to have "var" declarations on any place (logic of ocurse). In other languages you usually declar variables at the beginning of code or functions, but if you do that in Javascript you might be calling something which is not existing yet.
Isn't this a little "spaghetti" code or is considered fine?
Thanks
2 Answers
Daan Schouten
14,454 PointsIt is true you can run into errors when you declare a variable that references to an html element that hasn't been created yet. But you could circumvent this issue by either placing the script at the end of your html page so that the page is already loaded before the script is called, for example.
Personally, I like to wrap most of my code into a function, which includes the var declarations, and then call another function within the first function that actually uses these declared variables.
If you prefer running your Javascript when the page has loaded without including javascript in your html file, check out this thread. There are a few simple methods that ensure Javascript runs when the html is ready.
http://stackoverflow.com/questions/807878/javascript-that-executes-after-page-load
Alexander Davison
65,469 PointsIt depends on the context. Can you show me your code?