Newbie Coders Chat

This stuff isn't original to JS btw. C++ (and pretty much any other modern language) can have anonymous functions and function variables but without the god awful JS syntax. JS is only good for one thing and that's for using jQuery on HTML, apart from that, I ****ing hate it.

Let me see if I properly understand what you are asking.

cost is just the argument that belongs to the named function with name orangeCost. The variable orangeCost now points to an area in memory that represents a function.
At the last line, you are calling the [pre]orangeCost("5";[/pre] function, passing in the literal string "5" as a parameter because that is a statement (a statement ends with a semicolon). A result of that statement is that the function gets looked up in memory and executed (argument + function body, what's inside the braces) with the parameters that you gave it.
So, cost is a placeholder, that sits there, waiting for a value to be assigned to it. When you call [pre]orangeCost("5";[/pre] you pass in the value 5 and that will be passed onto cost, so that cost now equals 5.
Finally, it will read: console.log(5*5); which will be 25 as a result.
Using the function name makes the Javascript engine look up that function in memory (RAM). Using the parentheses is a way to pass in parameters, so that if they get used, their values will be redirected and assigned to the function's argument definition. Somewhere in memory there is a place for functions and somewhere in there is a place for the function's arguments too.

I hope this was a decent explanation. If not, feel free to inquiry me further on it.

P.S.: it's not good practice to pass in a string where a number is expected, so "5" should be 5.
P.P.S: I'm not a Javascript expert.

in-depth discussion:

Hey there Craghyrax, I'm glad to see you are making progress in understanding.

As for the whole statement, expression, variable terminology, this should help.

The explanation for variable is quite simple: it is a piece of information whose value can vary (much like in math, x is a variable, as it represents an arbitrary value).
It is a piece of information that refers to a specific spot in memory (RAM), in such a way that if I were to refer to that memory address, I would find its corresponding value for the variable (e.g.: x = 5). A little basket with an egg in it, if you will.

JS is only good for one thing and that's for using jQuery on HTML, apart from that, I ****ing hate it.

This is why I recommend for beginners to read an entire in-depth book on the language, like I did.

Bootstrap is just a fancy CSS library to make up for CSS design/problems and you don't need it to understand Javascript.
jQuery is another layer above Javascript to make everything easier and less raw.

I recommend knowing Javascript well (or at least have a good foundation) before going into jQuery.

Bootstrap is just a fancy CSS library to make up for CSS design/problems and you don't need it to understand Javascript.
jQuery is another layer above Javascript to make everything easier and less raw.

I recommend knowing Javascript well (or at least have a good foundation) before going into jQuery.

As for your question: understanding the design principles of Bootstrap and how it helps CSS problems is helpful to become an advanced web developer, as well as knowing jQuery to a good degree, but I am still of the opinion that it's more important to know the lower level languages (like Javascript) first. It's not a one-off thing, you actually need to have strong fundamentals in the core of it all (in this case CSS for Bootstrap and Javascript for jQuery) in order to understand the bigger picture (Bootstrap and jQuery).

I've worked with two guys who hadn't learned CSS or Javascript decently before and they were struggling like mad to get CSS and jQuery figured out. Every time, I had to go over and tell them how the specific problem they were having would originate back to the way JS and CSS work internally.

And so, I emphasize again, the following skills will make you an advanced web developer:
- have all the basics down (Javascript, HTML5, CSS3) as well as know the history and how the languages evolved, know how they play in today's IT market, etc.
- strong fundamentals and a deep understanding of computer languages
- strong analytical skills to read in between the lines, to see the links between different languages (this helps a lot for debugging. Especially cross-tier, cross-layer debugging and optimization is exceptionally hard)
- dedication, motivation, hunger for knowledge
- studying the languages up to a point that you get super nerdy (past the point people don't care, going into extreme detail and being pedantic, I actually do that, but perhaps that's just my style)

Hi my good friend. Here are the latest programs i would greatly appreciate your help with:



http://pastebin.com/9QWb1duP

http://pastebin.com/Nm5wdZpF

Thanks!

First thing is that the question was asking you to create a static method in the LeapYear class that takes an int and returns a boolean. You're overcomplicating it by have constructors, instance variables etc. All you need is that one static method, and main which should call it a few times..

First thing is that the question was asking you to create a static method in the LeapYear class that takes an int and returns a boolean. You're overcomplicating it by have constructors, instance variables etc. All you need is that one static method, and main which should call it a few times..

Hi my good friend. Here are the latest programs i would greatly appreciate your help with:



http://pastebin.com/9QWb1duP

http://pastebin.com/Nm5wdZpF

Thanks!

Hi my good friend. Here are the latest programs i would greatly appreciate your help with:



http://pastebin.com/9QWb1duP

http://pastebin.com/Nm5wdZpF

Thanks!

http://pastebin.com/4UYWgDAZ

Is this one any better??

http://pastebin.com/D5nVgcQK
You're welcome!

Yeah that's better, but I would put that if statement within its own boolean method - boolean isLeapYear(), just to keep main as clean as possible, so it will be like:static boolean isLeapYear (int year){
if (...)
return ...;
else
return ...;
}and then in main, after receiving the year from the user you could have something like:public static void main (String[] args) {
if (isLeapYear(year))
...
else
...
}Also, I'm not sure whether it's pastebin, but the whitespace seems very off and it's making things hard to follow.

Does anyone here know which websites/books I can use to practice Java? From scratch ideally... thank you.

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