How do I cout each character in sentence

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When I set in text object 'ok' system set to global variable 2

when text display for example 'good' system set to global variable 4 ?

 

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Avoid global variables, they kinda suck.

What language are you coding in ?

In javascript a naive implementation to count words would be something like this :-

sentence.trim().split(/\s+/).length;

Characters, well depends what you class as a character...

It could simple be sentence.length, but I doubt it, as this counts spaces, non-printable characters etc.

So the first thing you need to do is really define your problem in simple terms so yourself and others can understand it.

If you decide that you want all non whitespace characters, then you can simply filter out the whitespace characters.

javascript:alert('Hello World'.split('').filter(c => /\S/.test(c)));

Try sticking that in your browser addressbar.