typescript enable experimental code example

Example 1: Experimental support for decorators is a feature that is subject to change in a future release. Set the 'experimentalDecorators' option in your 'tsconfig' or 'jsconfig' to remove this warning.ts(1219) angular

In VSCode, Go to File => Preferences => Settings (or Control+comma) and it will open the User Settings file. Add "javascript.implicitProjectConfig.experimentalDecorators": true to the file and it should fix it.

Example 2: typescript decorators

tsfunction f() {
  console.log("f(): evaluated");
  return function(target, propertyKey: string, descriptor: PropertyDescriptor) {
    console.log("f(): called");
  };
}

function g() {
  console.log("g(): evaluated");
  return function(target, propertyKey: string, descriptor: PropertyDescriptor) {
    console.log("g(): called");
  };
}

class C {
  @f()
  @g()
  method() {}
}