I am a novice in this and it is really making me to lose my hair; I can find what I'm doing wrong, please help. I am doing this in javascript. It doesn't show any error, nor display any result either. This is what I have:
var sumIt;
var subtractIt;
var multiplyIt;
var divideIt;
var operatorOpt = prompt("Select operator");
function showResult(whatResult) {
document.write(whatResult);
document.write("<br>");
}
var doSomething = function(num1, num2) {
if (operatorOpt == sumIt) {
showResult("The result is: " + (num1 + num2));
} else if (operatorOpt == subtractIt) {
showResult("The result is: " + (num1 - num2));
} else if (operatorOpt == multiplyIt) {
showResult("The result is: " + (num1 * num2));
} else if (operatorOpt == divideIt) {
showResult("The result is: " + (num1 / num2));
doSomething(parseInt (prompt("Enter first number: ")) , parseInt (prompt("Enter second number: ")))Simply at the prompt create a list with the options like so:
prompt("Select operator:"
+ "\n1. Addition"
+ "\n2.Subtraction"
+ "\n3.Multiplication"
+ "\n4.Division");
Then compare the user supplied numbers whit the operator number.
It seems that your are missing a closed bracket in the definition of doSomething function. The following code seems to work produce the desired results
var sumIt = "+";
var subtractIt = "-";
var multiplyIt = "*";
var divideIt = "/";
var operatorOpt = prompt("Select operator");
function showResult(whatResult) {
console.log(whatResult);
document.write(whatResult);
document.write("<br>");
}
var doSomething = function(num1, num2) {
if (operatorOpt == sumIt) {
showResult("The result is: " + (num1 + num2));
} else if (operatorOpt == subtractIt) {
showResult("The result is: " + (num1 - num2));
} else if (operatorOpt == multiplyIt) {
showResult("The result is: " + (num1 * num2));
} else if (operatorOpt == divideIt) {
showResult("The result is: " + (num1 / num2));
} else {
console.log("No Condition reached");
}
}
doSomething(parseInt (prompt("Enter first number: ")) , parseInt (prompt("Enter second number: ")));