The selectize input returns the item(s) that you selected, but keep in mind that it may also return an empty string when all the selected items are deleted using the key Backspace or Delete. We will introduce both types of the selectize input below. For example, when there are 100,000 choices for the selectize input, it will be slow to write all of them at once into the page, but we can start from an empty selectize input, and only fetch the choices that we may need, which can be much faster. This is particularly useful when the number of choices is very large.
It can also be done on the server side, using R to match the string and return results. The searching can be done on the client side (default behavior), when all the possible options have been written on the HTML page. When we type in the input box, selectize will start searching for the options that partially match the string we typed. This example shows a side by side comparision between selectize and select input. Please check out the usage documentation of selectize.js for all the possible parameters. To create a selectize input, you can use the function selectizeInput(), and the usage is very similar to selectInput(): selectizeInput ( inputId, label, choices, selected = NULL, multiple = FALSE, options = NULL )Ī major difference between the usage of selectizeInput() and selectInput() is the options argument, which is a list of parameters to initialize the selectize input. It allows you to type and search in the options, use placeholders, control the number of options/items to show/select, and so on. The JavaScript library selectize.js provides a much more flexible interface compared to the basic select input.
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