| Ruby | JavaScript | Meaning | Ruby Method? |
Ruby Return Type |
Ruby Precedence |
|---|---|---|---|---|---|
| a[i] | a[i] | ith element of array a | Yes | Type of array element | 1 |
| n.to_s | n.toString() | dot operator | No | 1 | |
| a ** n | Math. pow(a, n) | a raised to the n power | Yes | Float | 2 |
| !expr | !expr | if expr is
true, return false; if false, return true |
Yes | Boolean | 3 |
| +5 | +5 | positive 5 (not usually used) | Yes | Numeric | 3 |
| -5 | -5 | negation of 5 | Yes | Numeric | 3 |
| x * y | x * y | x multiplied by y | Yes | Numeric | 4 |
| x / y | x / y | x divided by y | Yes | Numeric | 4 |
| x % y | x % y | x mod y (remainder from integer division) |
Yes | Numeric | 4 |
| x + y | x + y | sum of x and y | Yes | Numeric | 5 |
| s + t | s + t | concatenate s and t | Yes | String | 5 |
| x - y | x - y | difference of x minus y | Yes | Numeric | 5 |
| x < y | x < y | x is less than y | Yes | Boolean | 6 |
| x > y | x > y | x is greater than y | Yes | Boolean | 6 |
| x <= y | x <= y | x is less than or equal to y | Yes | Boolean | 6 |
| x >= y | x >= y | x is greater than or equal to y | Yes | Boolean | 6 |
| x == y | x == y | x is equal to y | Yes | Boolean | 7 |
| x != y | x != y | x is not equal to y | Yes | Boolean | 7 |
| expr1 && expr2 | expr1 && expr2 | logical and | No | Boolean | 8 |
| expr1 || expr2 | expr1 || expr2 | logical or | No | Boolean | 9 |
| y = x | y = x; | assign value of x to y | No | Type of x | 10 |