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/*global angular */
/**
* Directive that executes an expression when the element it is applied to gets
* an `escape` keydown event.
*/
angular.module('todomvc')
.directive('todoEscape', function () {
'use strict';
var ESCAPE_KEY = 27;
return function (scope, elem, attrs) {
elem.bind('keydown', function (event) {
if (event.keyCode === ESCAPE_KEY) {
scope.$apply(attrs.todoEscape);
}
});
scope.$on('$destroy', function () {
elem.unbind('keydown');
});
};
});