How to set data into input type="text" from localstorage array?

this is your localStorage

{client: "[{"identification":"123456","firstname":"John","lastname":"White","tel":"123456789"}]", se:fkey: "65d75836cdfe6220e7d8fd44a52ef14e,1438917914"}

to save it to the localStorage Object you need to make any object into a string first

you can do it using JSON.stringify(object)

to save it to your localStorage use localStorage.setItem('key', 'value')

and when you want to fetch it on the localStorage

you can do it using localStorage.getItem('key')

if your item is a json object converted into string

you can make use JSON.parse(string) to bring back to be a json object

First get the data from the localStorage and store them in a variable. Then convert your variable from string to valid JSON format. And finally access the needed data. Here is an example :

var client = JSON.parse(storage.getItem(YOUR_CLIENT_KEY));
...
$('#name').val(client[0].firstname);

Local storage (and session storage) are key/value stores where both the keys and values are strings.

So, when pulling data out of localStorage, it will be a string. In your case, you've stored a JSON object in storage, so to use this as an object, you need to get the string out of localStorage and then use JSON.parse to parse the string and convert it to an object, then you can use the object's properties with your jQuery code:

var data = localStorage.getItem("client");
if(data) {   
    var obj = JSON.parse(data);
    $('#name').val(obj[0].firstName + " " + obj[0].lastName);
}

Be aware that JSON.parse() can throw errors if the string is not valid JSON, so you may want to wrap this call in a try/catch block.

You should log localStorage first to see what is stored in it.

It's weird if the value is

 [{"identification":"123456","firstname":"John","lastname":"White","tel":"123456789"}]

because only string type can be stored in localStorage. So you may store the array above via:

localStorage.setItem('key', JSON.stringify(array_above));

Do:

var data = JSON.parse(localStorage.getItem('key'));

when you want to retrieve it.

What's more, your code:

$('#name').val(localStorage.getItem('name'));

works fine.

Here is my jsfiddle demo.