angular-filter/src/_filter/collection/fuzzy-by.js

Bunch of useful filters for angularJS(with no external dependencies!)

/**
 * @ngdoc filter
 * @name fuzzyByKey
 * @kind function
 *
 * @description
 * fuzzy string searching by key
 */
angular.module('a8m.fuzzy-by', [])
  .filter('fuzzyBy', ['$parse', function ( $parse ) {
    return function (collection, property, search, csensitive) {

      var sensitive = csensitive || false,
        prop, getter;

      collection = isObject(collection) ? toArray(collection) : collection;

      if(!isArray(collection) || isUndefined(property)
        || isUndefined(search)) {
        return collection;
      }

      getter = $parse(property);

      return collection.filter(function(elm) {

        prop = getter(elm);
        if(!isString(prop)) {
          return false;
        }

        prop = (sensitive) ? prop : prop.toLowerCase();
        search = (sensitive) ? search : search.toLowerCase();

        return hasApproxPattern(prop, search) !== false
      })
    }

 }]);