Refreshing local data with typeahead.js

Here's the three step process to follow to refresh local data with typeahead.js

If you are using local data or prefetched data with typeahead.js and you want to refresh that data there is a three step process;

  1. Do not pass a name into your typeahead, doing so will initiate LocalStorage and your changes will not be registered.
  2. When you want to refresh the data, you first need to destroy the current typeahead instance .typeahead(‘destroy’) will accomplish this.
  3. Next we need to recall typeahead with the updated local values or prefetched value.

That first point is important and caused me a few headaches, hopefully upon reading this you will avoid those same headaches with typeahead.js Here is a quick example;

var items = ['aaa', 'bbb', 'ccc'];

$('#item').typeahead({
  local: items
});

$('#add_item').click(function() {
  items.push('ddd');
  $('#item').typeahead('destroy');
  $('#item').typeahead({
    local: items
  });
});

Once #add_item is clicked, ‘ddd’ will be searchable. This is taken from the “Instant Typeahead.js book I have written.


Recent posts View all

Ruby

The best way to test model scopes in Rails

Learn about Rails scopes and how to best test them with both Rspec and Minitest

Ruby

Finding out what called a Ruby method

A quick way to understand what is calling your code using the caller method