Working with arrays in javascript.

Array is list of ordered items. An Array can have multiple items inside it and the values inside the arrays can be accessed by their index which starts from zero. In javascript arrays can have elements of different types like: numbers, strings, objects and more.

The items inside the myArray are of different types: numbers and strings.These values can be accessed using their respective index starting from zero. So if we wanted to access the elements inside the array we would do the following:

When enter an index that is larger than the size of the array you will get undefined.

Consider that you are having the following array

For iterating through an array we can do the following:

Value of simpleNumbers.length is 5. And the starting value for i is zero. That means that we are starting from the first element till the condition ( i < simpleNumbers.lenght) is true.

Steps:

1: value of i is zero.

2: value of simpleNumbers.length is 5.

3: check condition at first ( i < simpleNumbers.lenght) (0 < 5) which is true so we print the value.

4: then the value of i is incremented by one. So the next condition will be ( i < simpleNumbers.length) (1 < 5) which is true so we print the values.

5: then the value of i is incremented by one. So the next condition will be ( i < simpleNumbers.length) (2 < 5) which is true so we print the values.

6: And it goes on till the value of i is 6 which is ( i < simpleNumbers)(6 < 5) which is false so we get out of the loop

So that’s how you loop an array in javascript.

The length of simpleNumbers is 5 (since there are five elements inside the array). And value of result is 0.

And at first iteration the value of i is zero so the statement

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