Complete the createToggle function Problem #4

Complete the createToggle function Problem #4

Question: Write the createToggle() function and fulfill the functionality. 

const lightSwitch = createToggle('ON', 'OFF');

console.log(lightSwitch.getState());  // "ON"
lightSwitch.toggle();
console.log(lightSwitch.getState());  // "OFF"
lightSwitch.toggle();
console.log(lightSwitch.getState());  // "ON"
lightSwitch.reset();
console.log(lightSwitch.getState());  // "ON"

Answer:

function createToggle(onState, offState){
    let state = onState;
    return {
        getState(){
            return state;
        },
        toggle(){
            state = state==onState?offState:onState;
        },
        reset(){
            return onState;
        }
    };
}