get data api javascript code example

Example 1: how to get data from localstorage in javascript

//localStorage is an object, so values are stored by key name
//data from localStorage is always stored in strings
//usually the values at each key are stringified objects in JSON format, therefore we must parse them
var data = JSON.parse(localStorage.getItem("key name"));//make sure the "key name" exists in the localStorage

Example 2: vuejs get data fromo ajax

<script type="text/javascript">
var ItemsVue = new Vue({
    el: '#Itemlist',
    data: {
        items: []
    },
    mounted: function () {
        var self = this;
        $.ajax({
            url: '/items',
            method: 'GET',
            success: function (data) {
                self.items = JSON.parse(data);
            },
            error: function (error) {
                console.log(error);
            }
        });
    }
});
</script>

<div id="Itemlist">
    <table class="table">
        <tr>
            <th>Item</th>
            <th>Year</th>
        </tr>
        <tr v-for="item in items">
            <td>{{item.DisplayName}}</td>
            <td>{{item.Year}}</td>
        </tr>
    </table>
</div>

Example 3: fetch get data js

var myHeaders = new Headers();

var myInit = { method: 'GET',
               headers: myHeaders,
               mode: 'cors',
               cache: 'default' };

fetch('flowers.jpg',myInit)
.then(function(response) {
  return response.blob();
})
.then(function(myBlob) {
  var objectURL = URL.createObjectURL(myBlob);
  myImage.src = objectURL;
});