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Creates a new array or string containing only a specified number of elements. The elements are taken from either the beginning or the end of the source array, string or number, as specified by the value and sign (positive or negative) of `limit`. If a number is used as input, it is converted to a string.

## Usage

### In HTML Template Binding

    {{ limitTo_expression | limitTo : limit}}

### In JavaScript

    $filter('limitTo')(input, limit)

### Arguments

Param | Type | Details
--- | --- | ---
input | Array string number | Source array, string or number to be limited.
limit | string number | The length of the returned array or string. If the `limit` number is positive, `limit` number of items from the beginning of the source array/string are copied. If the number is negative, `limit` number of items from the end of the source array/string are copied. The `limit` will be trimmed if it exceeds `array.length`

### Returns

Array string | A new sub-array or substring of length `limit` or less if input array had less than `limit` elements.

## Example

Edit in Plunker

    <script>
      angular.module('limitToExample', [])
        .controller('ExampleController', ['$scope', function($scope) {
          $scope.numbers = [1,2,3,4,5,6,7,8,9];
          $scope.letters = "abcdefghi";
          $scope.longNumber = 2345432342;
          $scope.numLimit = 3;
          $scope.letterLimit = 3;
          $scope.longNumberLimit = 3;
        }]);
    </script>
    <div ng-controller="ExampleController">
      Limit {{numbers}} to: <input type="number" step="1" ng-model="numLimit">
      <p>Output numbers: {{ numbers | limitTo:numLimit }}</p>
      Limit {{letters}} to: <input type="number" step="1" ng-model="letterLimit">
      <p>Output letters: {{ letters | limitTo:letterLimit }}</p>
      Limit {{longNumber}} to: <input type="number" step="1" ng-model="longNumberLimit">
      <p>Output long number: {{ longNumber | limitTo:longNumberLimit }}</p>
    </div>

    var numLimitInput = element(by.model('numLimit'));
    var letterLimitInput = element(by.model('letterLimit'));
    var longNumberLimitInput = element(by.model('longNumberLimit'));
    var limitedNumbers = element(by.binding('numbers | limitTo:numLimit'));
    var limitedLetters = element(by.binding('letters | limitTo:letterLimit'));
    var limitedLongNumber = element(by.binding('longNumber | limitTo:longNumberLimit'));

    it('should limit the number array to first three items', function() {
      expect(numLimitInput.getAttribute('value')).toBe('3');
      expect(letterLimitInput.getAttribute('value')).toBe('3');
      expect(longNumberLimitInput.getAttribute('value')).toBe('3');
      expect(limitedNumbers.getText()).toEqual('Output numbers: [1,2,3]');
      expect(limitedLetters.getText()).toEqual('Output letters: abc');
      expect(limitedLongNumber.getText()).toEqual('Output long number: 234');
    });

    // There is a bug in safari and protractor that doesn't like the minus key
    // it('should update the output when -3 is entered', function() {
    //   numLimitInput.clear();
    //   numLimitInput.sendKeys('-3');
    //   letterLimitInput.clear();
    //   letterLimitInput.sendKeys('-3');
    //   longNumberLimitInput.clear();
    //   longNumberLimitInput.sendKeys('-3');
    //   expect(limitedNumbers.getText()).toEqual('Output numbers: [7,8,9]');
    //   expect(limitedLetters.getText()).toEqual('Output letters: ghi');
    //   expect(limitedLongNumber.getText()).toEqual('Output long number: 342');
    // });

    it('should not exceed the maximum size of input array', function() {
      numLimitInput.clear();
      numLimitInput.sendKeys('100');
      letterLimitInput.clear();
      letterLimitInput.sendKeys('100');
      longNumberLimitInput.clear();
      longNumberLimitInput.sendKeys('100');
      expect(limitedNumbers.getText()).toEqual('Output numbers: [1,2,3,4,5,6,7,8,9]');
      expect(limitedLetters.getText()).toEqual('Output letters: abcdefghi');
      expect(limitedLongNumber.getText()).toEqual('Output long number: 2345432342');
    });