Im trying to maken a function to use the AND-Logicgate but it only respons an array.
I tryed useing toString() and join() but they dont work. Can anybody help me.
Here is the Code:
Array.prototype.AND = function() {
var temp = true;
for (let i = 0; i < this.length; i++) {
if (this[i] == false) {
temp = false;
}
}
while (this.length > 0) {
this.pop();
}
this[0] = temp;
}
const test = [true, true, true, false];
test.AND();
console.log(test);So if the array contains a false, the prototyped function .AND should return false.
Use some to determine if the array contains a false.
const test = [true, true, true, false];
const test2 = [true, true, true, true];
const test3 = [true, "blah!", false];
// Make sure you do not overwrite an existing method
if(typeof(Array.prototype.AND) === "undefined"){
Array.prototype.AND = function() {
// Make sure the array only contains booleans
if(this.some(item => typeof(item) !== "boolean")){
throw `error: AND must be applied on boolean array only. Got ${JSON.stringify(this)}`
}
return !this.some(item => item === false)
}
}
console.log(test.AND()) // false
console.log(test2.AND()) // true
console.log(test3.AND()) // error thrownIn case one is allowed to use .reduce() this may be helpful:
const logicAndGate = arr => arr.reduce((a, b) => a && b, true);
const test = [true, true, true, false];
console.log(logicAndGate(test));
console.log(logicAndGate([true, true, true, true]));
console.log(logicAndGate([false, true]));
//test.AND();
//console.log(test);Another variation may be using .every like this:
const logicAndGate = arr => arr.every(x => !!x);
console.log(logicAndGate([true, true, true, false]));
console.log(logicAndGate([true, true, true, true]));
console.log(logicAndGate([false, true]));