CODE EXAMPLE FOR JAVASCRIPT

string to number in javacript

//string to number (typecasting)
console.log(typeof ("pp"))		//String
console.log(typeof (+"pp"))		//Number
console.log((+"pp"))			//Nan
console.log(typeof (+""))		//Number
console.log((+""))				//0
console.log(typeof (+"-6"))		//Number
console.log((+"-6"))			//-6

// application of above concept
let st= prompt("enter num") 	//String
console.log(typeof (st))		//${output entered in prompt box} 

let stnn= prompt("enter num") 	
console.log(typeof (stnn))		//String
let stnn = +stnn;				//converting stnn variable as Number
console.log(typeof (stnn))		//Number
console.log((stnn))		//${output entered in prompt box}