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JavaScript JavaScript Array Iteration Methods Array Iteration `for` vs forEach()

Posted by Muaaz Matwadia
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Muaaz Matwadia
Full Stack JavaScript Techdegree Graduate 19,327 Points

forEach()

Why do we need to pass a parameter.Example

const numbers = [1, 2 , 3 ,4 , 5] 
numbers.forEach( number =>{

})
}

whats the point of the number word

1 Answer

Mark Sebeck
MOD
Mark Sebeck
Treehouse Moderator 37,905 Points
Mark Sebeck
Mark Sebeck
Treehouse Moderator 37,905 Points

The foreach will call the callback function once for each element of the array numbers. As it iterates through the array number is the value of the current element in the array. So the first time it calls the call back function it will pass the first element (1) and the second time it will pass 2.

Here's a helpful link

Hope this help!