Basic operators
Arithmetic operators
Operators used to perform arithmetic operations.
$abs
Returns the absolute value of a number.
{ "$abs": "number" }
expry({ $abs: -5 }); // 5
expry({ $abs: 5 }); // 5
$add
Adds numbers together.
{ "$add": ["number", "number", "..."] }
expry({ $add: [1, 2, 3] }); // 6
expry({ $add: [-1, 2, -3, 4] }); // 2
$ceil
Returns the smallest integer greater than or equal to the specified number.
{ "$ceil": "number" }
expry({ $ceil: 5.5 }); // 6
expry({ $ceil: 5.1 }); // 6
expry({ $ceil: -2.8 }); // -2
$divide
Divides one number by another.
{ "$divide": ["number", "number"] }
expry({ $divide: [10, 2] }); // 5
expry({ $divide: [5, 2] }); // 2.5
$floor
Returns the largest integer less than or equal to the specified number.
{ "$floor": "number" }
expry({ $floor: 5.5 }); // 5
expry({ $floor: 5.1 }); // 5
expry({ $floor: -2.8 }); // -3
$mod
Divides one number by another and returns the remainder.
{ "$mod": ["number", "number"] }
expry({ $mod: [10, 3] }); // 1
expry({ $mod: [10, 2] }); // 0
$multiply
Multiplies numbers together.
{ "$multiply": ["number", "number", "..."] }
expry({ $multiply: [1, 2, 3] }); // 6
expry({ $multiply: [-1, 2, -3, 4] }); // 24
$pow
Raises a number to the specified exponent.
{ "$pow": ["number", "exponent"] }
expry({ $pow: [2, 3] }); // 8
expry({ $pow: [3, 2] }); // 9
expry({ $pow: [9, 0.5] }); // 3
$round
Rounds a number to a specified decimal place.
{ "$round": ["number", "place"] }
expry({ $round: [5.4, 0] }); // 5
expry({ $round: [5.55, 1] }); // 5.6
expry({ $round: [5.55, 3] }); // 5.55
$subtract
Subtracts one number from another.
{ "$subtract": ["number", "number"] }
expry({ $subtract: [5, 3] }); // 2
expry({ $subtract: [3, 5] }); // -2
$trunc
Truncates a number to the specified number of decimal places.
{ "$trunc": ["number", "place"] }
expry({ $trunc: [5.55, 0] }); // 5
expry({ $trunc: [5.55, 1] }); // 5.5
expry({ $trunc: [5.55, 3] }); // 5.55