let value = 4
let negvalue = -value 
console.log(negvalue);

/*console.log(2+2);
console.log(2-2);
console.log(2*2);
console.log(2**2);
console.log(2/2);
console.log(2%2);*/

let str1 = "hello "
let str2 = "namastey"
let str3 = str1 + str2 
console.log(str1 + str2)

/* javascript basic tricks*/

console.log(2+"3") //23
console.log("2"+"3") //23
console.log("1"+2+2) //122
console.log(1+2+'2') //32 

/* bad performance*/
console.log(+true);//true
console.log(+"");//fales

let gamecounter = 100
gamecounter++; // post increment and pre increment gives a same answer 
console.log(gamecounter);