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Stephen Perez
4,229 PointsJavascript notation == early in 'Intro to Programming'
Good Day ya'll!
In the Intro to Programming course/Control Structures/Loops/Fizzbuzz extra credit answers, there is Javascript syntax that I didn't see explained anywhere in the videos to this point or on W3 Schools. See this relevant snippet from another student's code
else if (number % 3 == 0) {
console.log("fizz");
}
I couldn't get my code to work until I copied "==" (and studied some more) but still cannot surmise the exact meaning. Any explanations please, and where I may reference similar questions?
3 Answers
geoffrey
28,736 PointsIt just means, if the remaining of the division of the number by 3 is equal to zero, then display fizz, so as an exemple if number was the number 2, fizz wouldn't be displayed, as if you divide 3 by 2, there is a remaining of 1, because in 3 you can just put one time the number 2. While with 3, fizz would be displayed...
Christopher Andrew Kemur
7,709 Pointshi stephen,
in programming we use '=' to assign a value, '==' is a comparison operator used to compare a value is same or not to the other value and '===' also a comparison operator but only can be 'true' if both of the conditions that compared have a same value and same data type.
Stephen Perez
4,229 PointsFor the "===" comparison operator, you mention "data type" . Do you mean like a string===string might be 'true', but string===number is never 'true' ? What is an example of two different data types? I understand the "same value" part.
Christopher Andrew Kemur
7,709 Pointsyes i mean like that.
example of different data types? numbers, string and booleans(true or false) are different data types.
example:
3 === '3' is false
true === 'true' is false
'treehouse' === 'treehouse' is true
hope it helps :)
Stephen Perez
4,229 PointsStephen Perez
4,229 Pointsahhh ok. just remembered that using a single '=' tells the program to equate something (i.e. var) to something else (i.e. an input value). it didn't click for me that "==" sets a condition that must be met such as 'check to see if the specified modulo condition "is equal to" ' .
this helped me out. i played around some more in my own script to make sure i understand fully. thanks so much! !