Math API ​

odd() ​

Checks if an integer is odd.

• Type

• Details

Takes an integer as an argument; returns true if the integer is odd, otherwise returns false.

• Example

odd(114514); // false

odd(114514); // false

even() ​

Checks if an integer is even.

• Type

• Details

Takes an integer as an argument; returns true if the integer is even, otherwise returns false.

• Example

even(114514); // true

even(114514); // true

add() ​

Calculates the sum of two numbers.

• Type

• Details

Takes two numbers as arguments; returns .

• Example

add(1, 114513); // 114514
add(1)(114513); // 114514

add(1, 114513); // 114514
add(1)(114513); // 114514

minus() ​

Calculates the difference between two numbers.

• Type

• Details

Takes two numbers as arguments; returns .

• Example

minus(114515, 1); // 114514
minus(114515)(1); // 114514

minus(114515, 1); // 114514
minus(114515)(1); // 114514

mul() ​

Calculates the product of two numbers.

• Type

• Details

Takes two numbers as arguments; returns .

• Example

mul(57257, 2); // 114514
mul(57257)(2); // 114514

mul(57257, 2); // 114514
mul(57257)(2); // 114514

div() ​

Calculates the quotient of two numbers.

• Type

• Details

Takes two numbers as arguments; returns .

• Example

div(229030, 2); // 114514
div(229030)(2); // 114514

div(229030, 2); // 114514
div(229030)(2); // 114514

divr() ​

Calculates the reversed quotient of two numbers.

• Type

• Details

Takes two numbers as arguments; returns .

• Example

divr(2, 229030); // 114514
divr(2)(229030); // 114514

divr(2, 229030); // 114514
divr(2)(229030); // 114514

mod() ​

Calculates the remainder of integer division.

• Type

• Details

Takes two integers as arguments; returns .

For modulo operation instead of remainder, use rema().

• Example

mod(114514, 1); // 0
mod(114514)(1); // 0

mod(114514, 1); // 0
mod(114514)(1); // 0

rema() ​

Calculates the modulo of integer division.

• Type

• Details

Takes two integers as arguments; returns .

For remainder operation instead of modulo, use mod().

• Example

rema(114514, 1); // 0
rema(114514)(1); // 0

rema(114514, 1); // 0
rema(114514)(1); // 0

power() ​

Calculates the power of a number.

• Type

• Details

Takes two numbers as arguments; returns .

• Example

power(114514, 1); // 114514
power(2)(3); // 8

power(114514, 1); // 114514
power(2)(3); // 8

negate() ​

Negates a number.

• Type

• Details

Takes a number as an argument; returns its negation.

• Example

negate(-114514); // 114514

negate(-114514); // 114514

upper() ​

Generates a descending comparator for use with the sort() function.

• Type

• Details

Returns a descending comparator for use with the sort function.

• Example

sort(upper(), [3, 2, 1]); // [3, 2, 1]

sort(upper(), [3, 2, 1]); // [3, 2, 1]

under() ​

Generates an ascending comparator for use with the sort() function.

• Type

• Details

Returns an ascending comparator for use with the sort function.

• Example

sort(under(), [3, 2, 1]); // [1, 2, 3]

sort(under(), [3, 2, 1]); // [1, 2, 3]

sort() ​

Sorts an array based on a specific rule.

• Type

• Details

Takes a rule function as the first argument and an array to be sorted as the second argument; returns a sorted array.

The rule function follows the same protocol as Array.prototype.sort.

• Example

sort(under(), [3, 2, 1]); // [1, 2, 3]

sort(under(), [3, 2, 1]); // [1, 2, 3]

median() ​

Calculates the median of an array of numbers.

• Type

• Details

Takes an array of numbers as an argument; returns its median.

• Example

median([1, 2, 3, 4, 5, 6]); // 3.5

median([1, 2, 3, 4, 5, 6]); // 3.5

sum() ​

Calculates the sum of an array of numbers.

• Type

• Details

Takes an array of numbers as an argument; returns the sum of all elements.

• Example

sum([1, 2, 3, 4, 5, 6]); // 21

sum([1, 2, 3, 4, 5, 6]); // 21

average() ​

Calculates the average of an array of numbers.

• Type

• Details

Takes an array of numbers as an argument; returns the average of all elements.

• Example

average([1, 2, 3, 4, 5, 6]); // 3.5

average([1, 2, 3, 4, 5, 6]); // 3.5

prod() ​

Calculates the product of an array of numbers.

• Type

• Details

Takes an array of numbers as an argument; returns the product of all elements.

• Example

prod([1, 2, 3, 4, 5, 6]); // 720

prod([1, 2, 3, 4, 5, 6]); // 720

max() ​

Finds the maximum number in an array.

• Type

• Details

Takes an array of numbers as an argument; returns the maximum number in the array.

• Example

max([1, 1, 4, 5, 1, 4]); // 5

max([1, 1, 4, 5, 1, 4]); // 5

min() ​

Finds the minimum number in an array.

• Type

• Details

Takes an array of numbers as an argument; returns the minimum number in the array.

• Example

min([1, 1, 4, 5, 1, 4]); // 1

min([1, 1, 4, 5, 1, 4]); // 1

dec() ​

Decrements a number.

• Type

• Details

Takes a number as an argument; returns the decremented value.

• Example

dec(114515); // 114514

dec(114515); // 114514

inc() ​

Increments a number.

• Type

• Details

Takes a number as an argument; returns the incremented value.

• Example

inc(114513); // 114514

inc(114513); // 114514