feat(package): upgrade to ng v2.3+ (#574)

src/file-upload/file-like-object.class.ts

@@ -0,0 +1,32 @@
+function isElement(node:any):boolean {
+  return !!(node && (node.nodeName || node.prop && node.attr && node.find));
+}
+
+export class FileLikeObject {
+  public lastModifiedDate:any;
+  public size:any;
+  public type:string;
+  public name:string;
+
+  public constructor(fileOrInput:any) {
+    let isInput = isElement(fileOrInput);
+    let fakePathOrObject = isInput ? fileOrInput.value : fileOrInput;
+    let postfix = typeof fakePathOrObject === 'string' ? 'FakePath' : 'Object';
+    let method = '_createFrom' + postfix;
+    (this as any)[method](fakePathOrObject);
+  }
+
+  public _createFromFakePath(path:string):void {
+    this.lastModifiedDate = void 0;
+    this.size = void 0;
+    this.type = 'like/' + path.slice(path.lastIndexOf('.') + 1).toLowerCase();
+    this.name = path.slice(path.lastIndexOf('/') + path.lastIndexOf('\\') + 2);
+  }
+
+  public _createFromObject(object:{size:number, type:string, name:string}):void {
+    // this.lastModifiedDate = copy(object.lastModifiedDate);
+    this.size = object.size;
+    this.type = object.type;
+    this.name = object.name;
+  }
+}