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JavaScript JavaScript Basics (Retired) Making Decisions with Conditional Statements Programming Multiple Outcomes

guram dgebuadze
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.a{fill-rule:evenodd;}techdegree
guram dgebuadze
Front End Web Development Techdegree Student 4,122 Points

boolean

why is teacher writing correctGuess in code block. he could have written this as a variable and defined value there for example var correctGuess = false; correctGuess += true.

3 Answers

Steven Parker
Steven Parker
231,269 Points

Your example of "var correctGuess = false;" is exactly what is on line 1 of the code.

And line 5 has "correctGuess = true" — the "var" isn't used again because a variable is only declared once but may be re-assigned many times.

Steven Parker
Steven Parker
231,269 Points

You would not use the "+=" operator on a boolean. Performing math on it would cause the system to convert it into a number.