Control Flow

For Each in JavaScript

Used iterate through all elements in an array or object.

//iterator variable is declared in the for each loop
for (var iteratorVariable of object) {
    //the individual element is held in the iterator variable
    //to access the value, just use iteratorVariable


Each element is represented by a temporary iterator variable, declared in the for-each structure.

var studentGrades = [50, 89, 75]; 

for (var grade of studentGrades) { 
    console.log("Grade: " + grade); 
} //prints each value of the array studentGrades (each loop is an element of studentGrades assigned to grade variable).

See Also
Documentation - JavaScript | MDN

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