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Board index mod_harbour JavaScript is a case-sensitive language
Posts: 6983
Joined: Fri Oct 07, 2005 07:07 PM
JavaScript is a case-sensitive language
Posted: Fri May 01, 2020 08:44 PM

JavaScript is a case-sensitive language. This means that the language keywords, variables, function names, and any other identifiers must always be typed with a consistent capitalization of letters.

So the identifiers Time and TIME will convey different meanings in JavaScript.

NOTE โˆ’ Care should be taken while writing variable and function names in JavaScript.

Posts: 1710
Joined: Tue Oct 28, 2008 06:26 PM
Re: JavaScript is a case-sensitive language
Posted: Fri May 01, 2020 09:02 PM

Thanks Otto

Saludos,



Adhemar C.
Posts: 6983
Joined: Fri Oct 07, 2005 07:07 PM
Re: JavaScript is a case-sensitive language
Posted: Wed May 26, 2021 03:23 PM

ReferenceError: Console is not defined

Always write 'console' with a lowercase 'c' because JavaScript is a case sensitive language.

Posts: 592
Joined: Tue Mar 14, 2006 11:34 PM
Re: JavaScript is a case-sensitive language
Posted: Sat Jun 26, 2021 03:34 PM

That's right Otto,
It is a case-sensitive language and it has several "funny" more things :

  • Arrays, months, strings, etc starts with index 0 (zero) and drives you crazy at begining ;)
  • Semicolon ( ; ) is to finish an statement in FW is to continue next line with curent command
  • Because index zero length() is equal to : array's / string's length + 1
  • and others...

However it has some stuff I just love it : Methods !!!
FW :
local cUsrName := "juan perez"
JS :
var cUsrName = 'juan perez';

To change it
FW:
cNwName := Upper( cUsrName )
JS:
cNwName = cUsrName.toUpperCase();

To know how many chars
FW:
nChars := len( cUsrName )
JS:
nChars = cUsrName.length;

And off course you can concatenate several methods in one single line : aNames = cUsrName.toUpperCase().split(' ');

I'm not saying JS is better language than FW, it has several downside too, but I really enjoy programming with both, in my app's new release I got my beloved FW and JS working together as one !

PD : It is NOT a very difficult language to learn and use for web programs, I'm sure you already know this because I saw some posts of you talking about JS, Html, Css, Php right ?
( It's been a looong time I don't post any message in the forum so I say Hello to all old friends and new ones !! )

Saludos / Best regards

FWH 10.6 + xHarbour + Borland 582

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