Object. Defineproperty and reflect Fault tolerance of defineproperty

• Object.defineProperty, There is an error , Will block the thread , Fault tolerant processing requires extensive use try…catch
• Reflect.defineProperty, Can pass Reflect.defineProperty The Boolean value of the call result , Handle fault tolerant branches directly

let obj = {
    a:1,b:2}
// adopt Object.defineProperty To operate 
//#region 
/* try { Object.defineProperty(obj,'c',{ get(){ return 3 } }) Object.defineProperty(obj,'c',{ get(){ return 4 } }) } catch (error) { console.log(error) } */
//#endregion



// adopt Reflect.defineProperty To operate 
//#region 
/* const x1 = Reflect.defineProperty(obj,'c',{ get(){ return 3 } }) console.log(x1) const x2 = Reflect.defineProperty(obj,'c',{ get(){ return 4 } }) if(x2){ console.log(' So and so operation succeeded ！') }else{ console.log(' So and so operation failed ！') } */
//#endregion

// console.log('@@@')