配列内の要素をJavascript/AngularJSで先頭に移動

Question

私はAngularJSフィルターを使ってムービーを選んでいますが、複数の検索語を使用しようとしています。ムービーがフィルタによってまだキャッチされていない場合、ムービーは配列の先頭に移動します。最終的には、ヒットで配列を並べ替えるのですが、その間は設定したいのですが、ムービーがすでに検索結果配列にある場合は、配列の先頭に移動して表示されます最初。どんな助けでも大歓迎です！

// New module: 

var app = angular.module('movieFinder', []); 

// Search function: 

app.filter('searchFor', function() { 

    return function(arr, searchString) { 

    // Show all movies until search begins 

    if(!searchString) { 
     return arr; 
    } 

    var result = []; 

    // Search for each word. Change to lowercase. Remove any punctuation. Split into array. 

    searchArray = searchString.toLowerCase().replace(/[^\w\s]|_/g, "").split(" "); 

    // Work through each word. 

    for (i = 0; i < searchArray.length; i++) { 

    // Work through each movie. 

    angular.forEach(arr, function(movie) { 

     if((movie.title.toLowerCase().indexOf(searchArray[i]) !== -1) || 
     (movie.description.toLowerCase().indexOf(searchArray[i]) !== -1) || 
     (movie.director.toLowerCase().indexOf(searchArray[i]) !== -1) || 
     (movie.country.toLowerCase().indexOf(searchArray[i]) !== -1) || 
     (movie.year.toString().indexOf(searchArray[i]) !== -1) || 
     (movie.genre.toLowerCase().indexOf(searchArray[i]) !== -1) || 
     (movie.keywords.toLowerCase().indexOf(searchArray[i]) !== -1)) { 

      // If the movie is not listed... 

      if (result.indexOf(movie) === -1) { 

      // Insert at top of array 

      result.unshift(movie); 

      }; 

     }; 
     }); 
    } 

    return result; 

    } 

}); 

// The controller 

function MovieFinderController($scope){ 

    // The data model 

    $scope.movies = [ 

    { 
     title: 'The Beat That My Heart Skipped', 
     description: 'Will Thomas still lead a life of crime and cruelty, just like his thuggish father, or will he pursue his dream of becoming a pianist?', 
     director: 'Jacques Audiard', 
     country: 'France', 
     year: 2005, 
     genre: 'Noir Thriller', 
     cover: 'images/thebeatthatmyheartskipped.jpg', 
     keywords: 'piano, gangster, broody, thug' 
    },{ 
     title: 'Chungking Express', 
     description: 'Two melancholy Hong Kong policemen fall in love: one with a mysterious female underworld figure, the other with a beautiful and ethereal server at a late-night restaurant he frequents.', 
     director: 'Wong Kar Wai', 
     country: 'Hong Kong', 
     year: 1994, 
     genre: 'Romantic Comedy', 
     cover: 'images/chungkingexpress.jpg', 
     keywords: 'fast food, cops, music, wigs, dancing, Chinese food, heartache, eating' 
    } 
(...) 

ありがとうございました！

Answer 1

Array.prototype.unshiftを使用して、配列の先頭にあるものを追加します。

Array.prototype.unshift.apply(<your array>, <movies to be added at beginning>);