assignment operator in javascript

Program 1 // let a=50,b=50,c=50 // console.log(a==b==c) //250?console.log(“Welcome”):console.log(“Bye Bye”) // let a=10,b // b=++a + a++ + ++a // console.log(a) // console.log(b) // let a=10,b=20,c // c=(++a>50 && ++b>10) // console.log(a) //11 // console.log(b)...