Definition

number add(number $left, number $right)

Returns $left + $right.

Parameters

number $left

The left argument of addition.

number $right

The right argument of addition.

Returns

number

A number equal to the value of the sum of the two parameters.

Examples

{
  sum: add(`3`, `2`),
  sum2: add(`3`, `-2`),
  boolSum: add(`true`, `false`),
  boolSum2: add(`true`, `10`),
  numStringSum: add('3.1', '2.9'),
  nullSum: add(`null`, `null`),     // Error
  textSum: add('a', 'b'),           // Error
  arraySum: add(`[]`, `[]`),        // Error
  objectSum: add(`{}`, `{}`)        // Error
}

{
  "sum": 5,
  "sum2": 1,
  "boolSum": 1,
  "boolSum2": 11,
  "numStringSum": 6
}

Remarks

boolean arguments are valid as well and implicitly converted to their integer values. Same holds for string arguments that follow a number format. However, it is recommended to call the function with number parameters.