查找数组中“索引”应用程序出现的次数

Question

I'm trying to find out if "Index" exist in my array, and second then count how many time it does appear.

Nothing of what I'm trying is working, this is the best attempt i've made, but cant turn my head around this.

 var arr = {"__metadata":{"id":"a5e55ca2-c574-434e-8ec3-1b9cd4595bcb","uri":"https://lavanet.sharepoint.com/sites/devcla/_api/Web/Lists(guid'cc4de542-1c06-4f53-b787-b8a2d42fe21e')/Items(1)","etag":"\\"2\\"","type":"SP.Data.SalesListItem"},"FirstUniqueAncestorSecurableObject":{"__deferred":{"uri":"https://lavanet.sharepoint.com/sites/devcla/_api/Web/Lists(guid'cc4de542-1c06-4f53-b787-b8a2d42fe21e')/Items(1)/FirstUniqueAncestorSecurableObject"}},"RoleAssignments":{"__deferred":{"uri":"https://lavanet.sharepoint.com/sites/devcla/_api/Web/Lists(guid'cc4de542-1c06-4f53-b787-b8a2d42fe21e')/Items(1)/RoleAssignments"}},"Activities":{"__deferred":{"uri":"https://lavanet.sharepoint.com/sites/devcla/_api/Web/Lists(guid'cc4de542-1c06-4f53-b787-b8a2d42fe21e')/Items(1)/Activities"}},"AttachmentFiles":{"__deferred":{"uri":"https://lavanet.sharepoint.com/sites/devcla/_api/Web/Lists(guid'cc4de542-1c06-4f53-b787-b8a2d42fe21e')/Items(1)/AttachmentFiles"}},"ContentType":{"__deferred":{"uri":"https://lavanet.sharepoint.com/sites/devcla/_api/Web/Lists(guid'cc4de542-1c06-4f53-b787-b8a2d42fe21e')/Items(1)/ContentType"}},"GetDlpPolicyTip":{"__deferred":{"uri":"https://lavanet.sharepoint.com/sites/devcla/_api/Web/Lists(guid'cc4de542-1c06-4f53-b787-b8a2d42fe21e')/Items(1)/GetDlpPolicyTip"}},"FieldValuesAsHtml":{"__deferred":{"uri":"https://lavanet.sharepoint.com/sites/devcla/_api/Web/Lists(guid'cc4de542-1c06-4f53-b787-b8a2d42fe21e')/Items(1)/FieldValuesAsHtml"}},"FieldValuesAsText":{"__deferred":{"uri":"https://lavanet.sharepoint.com/sites/devcla/_api/Web/Lists(guid'cc4de542-1c06-4f53-b787-b8a2d42fe21e')/Items(1)/FieldValuesAsText"}},"FieldValuesForEdit":{"__deferred":{"uri":"https://lavanet.sharepoint.com/sites/devcla/_api/Web/Lists(guid'cc4de542-1c06-4f53-b787-b8a2d42fe21e')/Items(1)/FieldValuesForEdit"}},"File":{"__deferred":{"uri":"https://lavanet.sharepoint.com/sites/devcla/_api/Web/Lists(guid'cc4de542-1c06-4f53-b787-b8a2d42fe21e')/Items(1)/File"}},"Folder":{"__deferred":{"uri":"https://lavanet.sharepoint.com/sites/devcla/_api/Web/Lists(guid'cc4de542-1c06-4f53-b787-b8a2d42fe21e')/Items(1)/Folder"}},"ParentList":{"__deferred":{"uri":"https://lavanet.sharepoint.com/sites/devcla/_api/Web/Lists(guid'cc4de542-1c06-4f53-b787-b8a2d42fe21e')/Items(1)/ParentList"}},"Properties":{"__deferred":{"uri":"https://lavanet.sharepoint.com/sites/devcla/_api/Web/Lists(guid'cc4de542-1c06-4f53-b787-b8a2d42fe21e')/Items(1)/Properties"}},"FileSystemObjectType":0,"Id":1,"ServerRedirectedEmbedUri":null,"ServerRedirectedEmbedUrl":"","ContentTypeId":"0x010048CF0CAB992F7B409B79C034586FFB7E","Title":"Test data 1","Date":"2017-01-01T08:00:00Z","Index":20,"Index2":15,"ID":1,"Modified":"2017-04-18T12:27:19Z","Created":"2017-02-03T10:02:10Z","AuthorId":17,"EditorId":17,"OData__UIVersionString":"1.0","Attachments":false,"GUID":"d87fa9d2-c81e-4dfd-b568-c8a300fc12d8"} function containsObject(obj, list) { var x; for (x in list) { if (list.hasOwnProperty(x) && list[x] === obj) { return true; } } return false; } console.log(containsObject("index", arr)); 

Would love if someone could help a bit

Answer 1

If you would like to count both if key and/or value of prop === index and not bother of case-sensitivity, then you can try something like this.

function containsObject(obj, list) {
  var cnt = 0;
  for (var x in list) {
    var val = list.hasOwnProperty(x) && list[x] ? list[x].toString() : '';

    if (x.toLowerCase() === obj.toLowerCase() ||
      val.toLowerCase() === obj.toLowerCase()) {
      cnt++;
    }
  }
  return cnt;
}