function expression and function declaration

1const plantNeedsWater = function(day){
2  if (day === 'Wednesday'){
3    return true;
4  } else{
5    return false;
6  }
7}
8
9console.log(plantNeedsWater('Tuesday'))

1const getRectArea = function(width, height) {
2  return width * height;
3};
4
5console.log(getRectArea(3, 4));
6// expected output: 12
7

1const mul = function(x, y){
2    return x * y;
3}; //semicolon needs to be there as it is expression
4
5console.log(mul(10, 20));

1// Function Declaration
2function add(a, b) {
3	return a + b;
4}
5console.log(add(1,2)); //3
6
7// Function Expression
8const add = function (a, b) {
9	return a + b;
10};
11
12console.log(add(1,2)); //3