get type of object typescript not string code example

Example 1: typescript object type

//is not strict mode
let endedCoord: {x: number, y: number} = {
  	x: -1,
  	y: -1,
}

Example 2: type gurad

1) Type guards narrow down the type of a variable within a conditional block.
2) Use the 'typeof' and 'instanceof operators to implement type guards in the
	conditional blocks.
   
//example(typeof)
if (typeof a === 'number' && typeof b === 'number') {
    return a + b;
}

(instanceof)
if (job instanceof detail){
	jobless = false ;
}