filter.md

Filter

The filter service allows you to register new filter and use them to format given values for user display or for integration with other services.

The filters listed in the filters service are the ones used by the 'data-ls-echo' view internally.

API

• add(name, callback)
• apply(name, value)

add()

Register a new filter

Param	Type	Description
name	string	Name of the new filter
callback	callable	Filter function that accept the user value and return the new one

Return Value

Returns filter object instance.

Example

filter.add('uppercase', function (value) {
    return value.toUpperCase();
});

apply()

Applies a filter function on a given value

Param	Type	Description
name	string	Name of the filter
value	mixed	Value to format

Return Value

Filter callback result.

Example

let result = filter.apply('john doe', 'uppercase'); // JOHN DOE

Predefined Filters

Name	Description
uppercase	Convert given string to upper case letters
lowercase	Convert given string to lower case letters

Think we should add more predefined filters? send us a pull request or open an issue for us to review.