Searching A Json With Javascript With Exact Tags

I have a following JSON where search is to be performed by selecting filters: { 'Books': [ { 'title': 'Book 1', 'binding': 'paperback', 'category': '

Solution 1:

Use forEach to iterate the array and use indexOf to find if the required value is present in that key

var m = {
  "Books": [{
      "title": "Book 1",
      "binding": "paperback",
      "category": "pop",
      "language": "english",
      "author": "male"
    },
    {
      "title": "Book 2",
      "binding": "hardcover",
      "category": "pop rock,electro pop",
      "language": "french",
      "author": "female"
    },
    {
      "title": "Book 3",
      "binding": "audiobook",
      "category": "soft rock",
      "language": "german",
      "author": "male,female"
    },
    {
      "title": "Book 4",
      "binding": "boxed set",
      "category": "rock,classic rock",
      "language": "english",
      "author": "female,male"
    },
    {
      "title": "Book 5",
      "binding": "paperback",
      "category": "electro pop,rock,classic rock",
      "language": "french",
      "author": "male/female"
    },
    {
      "title": "Book 6",
      "binding": "paperback",
      "category": "rock",
      "language": "french",
      "author": "male"
    }
  ]
}




// a function which accepts key which is one of binding,category,language,author.// the array will be filtered on this keyfunctiongetFilteredElement(key, value) {
    var bookFilter = [];
    m.Books.forEach(function(item){
       var getFilterField = item[key];
       // since the value is a string, so splitting it and creating an arrayvar keyArray = item[key].split(',');
       // now checking if the passed value has a presence in the  above arrayif (keyArray.indexOf(value) !== -1) {
           // if present pushed the book name
           bookFilter.push(item.title);
       }
   });
    // returning the array of booksreturn bookFilter;
}

console.log(getFilteredElement('category', 'rock'))