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up vote 1 down vote favorite

This question already has an answer here:

Okay, take it easy on me. I am really new to JavaScript and having issues getting the for-each loop to work correctly. Any Tips?

var array = ["Bob", "Nancy", "Jessie", "Frank"];
var arrayLength = myStringArray.length;

for (var i = 0; i < arrayLength; i++) {
    document.write(array);
}
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marked as duplicate by Frédéric Hamidi Jun 10 '14 at 19:06

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.
    
document.write(myArray[element]); –  juvian Jun 10 '14 at 19:04
2  
^ noooooooooooo (document.write()) –  Sterling Archer Jun 10 '14 at 19:04
    
stackoverflow.com/questions/242841/javascript-for-in-vs-for –  maandoo Jun 10 '14 at 19:06
    
and even this stackoverflow.com/questions/500504/… –  maandoo Jun 10 '14 at 19:08
    
@Srinath, so, you don't like my duplicate? ;) –  Frédéric Hamidi Jun 10 '14 at 19:08

2 Answers 2

up vote -1 down vote accepted

The for in is used to iterate over properties on the object. It is not the same as a regular foreach. Use a for loop for this

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up vote 2 down vote 
var myArray = ["Bob", "Nancy", "Jessie", "Frank"];
var arrayLength = myStringArray.length;

for (var i = 0; i < arrayLength; i++) {
    //Do something with element myArray[i]
}

I guess you need something like this.

Edit: Your array has only 4 elements. In the 2nd line I save the length of your array (4 elements --> length is 4) in the variable 'arrayLength'. Then I wrote a simple for-loop which cycles the 'i' from 0 till 3 so you can access your elements from your array as 'myArray[i]'.

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Please explain your answers. While this is sort of right (I don't condone document.write() advocation), the OP may have no idea what the difference is –  Sterling Archer Jun 10 '14 at 19:09

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