increment through a multidimensional array

Question

Im not quite sure how to go about doing this but is there a way to increment through a dimensional array one item at a time for instance if i want to increment through the second row one at a time with a button click how could i do this.

Kenneth Black · Accepted Answer

you can select elements in multidimensional arrays by using multiple [] selectors, like so:
```JavaScript
var array = [["alpha","bravo","charlie"],["delta","echo","foxtrot"],["golf","hotel","india"]]
//this will return the second item of the second array, since arrays are 0-indexed
array[1][1]
```
To iterate over items with a button click, just add a counter and add to it as part of the event handler
```JavaScript
var counter = 0
buttonElement.onclick = function() {
    var currentItem = array[1][counter];
    counter++
}
//or, using jquery
var counter = 0
$('#button').click(function() {
    var currentItem = array[1][counter];
    counter++
});
```

Samuel Webb · Answer

You could use a for loop.
```javascript
for (var i = 0; i < arr[1].length; i++) {
    doSomething(arr[1][i]);
}
```

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alex gwartney

alex gwartney

increment through a multidimensional array

2 Answers

Kenneth Black

Kenneth Black

Samuel Webb

Samuel Webb