What I'm trying to do is to get a json object via Ajax and populate the Bootstrap Typeahead with just one kind of value.
Here is my code:
nameTypeHead: function () {
var _self = this,
searchInput = $('#nameTypeHead'),
arr = [];
function getArray() {
$.ajax({
url: '/Home/AutoComplete',
type: 'post',
dataType: 'json',
data: { searchText: searchInput.val() },
success: function (data) {
$.each(data, function () {
arr.push(this.Name);
});
return arr;
}
});
}
searchInput.typeahead({
source: getArray()
});
}
I receive the error that arr is null
I also tried with .parseJSON()
but with no success:
$.each($.parseJSON(data), function () {
arr.push(this.Name);
});
What can I do to show just the value Name of my Json Object in the Typeahed?
If in the Ajax Success I put alert(JSON.stringify(data));
it alert correctly my Json Object.
I made it from scratch:
$('#typeahead').typeahead({
source: function (query, process) {
return $.getJSON(
'path/to/lookup',
{ query: query },
function (data) {
return process(data);
});
}
});
Where data
is a simple JSON array like:
[
"John",
"Jane",
"Alfredo",
"Giovanni",
"Superman"
]
If your data
array has got a different structure, just rearrange it before passing it to process()
method.
You can find a live example here.
EDIT - based on your json data:
[
{'id':'0', 'name':'John'},
{'id':'1', 'name':'Jane'},
{'id':'2', 'name':'Alfredo'},
...
}
The getJSON
callback becomes:
function (data) {
return process(data.map((x => x.name));
});
Checkout this gist. Does autocomplete, deals with fast typers, and caches
https://gist.github.com/mrgcohen/5062352
This is what worked for me:-
HTML Setup :
<!-- HTML Setup-->
<input type="text" id="my-typeahead" />
Javascript :
/*
example remote-data-source
[
{
id:1,
name:'Batman'
},{
id:2,
name:'Superman'
}
]
*/
$('#my-typeahead').typeahead({
hint: true,
highlight: true,
minLength: 1
}, {
name: 'myDataset',
source: function(str, sync, async) {
// abstracting out the "REST call and processing" in a seperate function
restCall(str, async);
},
templates: {
suggestion: function(user) {
return '<div>' + user.name + '</div>';
},
pending: '<div>Please wait...</div>'
}
});
// The function that will make the REST call and return the data
function restCall(str, async) {
return $.ajax('http://url-for-remote-data-source/query?name=' + str, {
// headers and other setting you wish to set-up
headers: {
'Content-Type': 'application/json',
},
// response
success: function(res) {
//processing data on response with 'async'
return async(res.data);
}
});
}
References:
Typeahead Docs - Datasets
: https://github.com/twitter/typeahead.js/blob/master/doc/jquery_typeahead.md#datasets
Jquery **$.ajax()**
: https://api.jquery.com/jquery.ajax/
Good Luck.
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