Try to find a generic way of incrementing a value without new assignments

increment.js

// This doesn`t work, as val is a completly different value then count with own scope
var count = 0;

var increment = function(val){
	val += 1;
}

increment(count);
console.log(count);

// doesn`t work because first assignment then incrementation
var value = 0;
var increment = function(otherValue){
	value = otherValue++;
};

increment(value);
console.log(value);

// works but now I increment just value and if I pass something else to the function it is broke
var value = 0;
var increment = function(otherValue){
	value = ++otherValue;
};

increment(value);
console.log(value);

// Best suited for the generic case, works fine for me, and I can pass what ever I want
var obj = {value: 0};
var increment = function(obj){
	obj.value++;
};

increment(obj);
console.log(obj.value);

// Optimisation of the example above, without increment operator
var obj = {value: 0};
var increment = function(obj){
	obj.value += 1;
};

increment(obj);
console.log(obj.value);