based on you reading last night can you convert these JS into Ruby ?
const sayHi = (name) => {
console.log("Hi " + name );
}
const rectangleArea = (length, width) => {
return length * width ;
}
sayHi("Ghadeer")
Rectangle(2, 3)
// flatt an array remember !!
// Abdulrab solution
const arr = [1,[2,3,null,4],[null],5 , 1 , 2];
const result = [];
const flat =(element) => {
if ( element != null && result.indexOf(element) < 0 ){
result.push(element)
return element
};
};
const arr2 = arr.reduce((accumulator, currentValue) => accumulator.concat(currentValue),[]);
arr2.filter(el => flat(el));
console.log(result);
``