New Typescript 1.8.4 build error: “ Build: Property 'result' does not exist on type 'EventTarget'. ”

Question

I am New to typescript. In my Durandal application I migrated to VS-2012 to VS-2015 means typescript 0.9 to typescript 1.8.4. After migrated I got so many build errors. I re

Answer 1

The above solutions didn't fit my similar issue with IndexedDB so I thought I'd share what did work in my scenario. By changing the (event) functions' arguments to (event: any) I was able to ignore the type errors.

Sample Code:

let request = window.indexedDB.open('userChannels', 3);

request.onerror = function(event: any ) {
    console.log('ERROR: Failed to create userChannels local DB' + event.target.errorCode)
  };

request.onsuccess = function(event: any) {
   let db = event.target.result;
   console.log('SUCCESS: Created userChannels local DB')
};

Answer 2

instead of

    this.localDbRequest.onsuccess = function (event) {
      const db = event.target.result;
    };

do

   this.localDbRequest.onsuccess = function (event) {
     const db = this.result;
   };