Control Flow
For Each in JavaScript
Used iterate through all elements in an array or object.
Syntax
//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
}Notes
Each element is represented by a temporary iterator variable, declared in the for-each structure.
Example
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).