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(These docs cover all versions between v3 to v8 and are equivalent to the old BuckleScript docs before the rebrand)

Int

This module includes convenience methods for handling int types.

toFloat

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let toFloat: int => float;

Converts a given int to a float.

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Js.log(Belt.Int.toFloat(1) === 1.0); /* true */

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let fromFloat: float => int;

Converts a given float to an int.

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Js.log(Belt.Int.fromFloat(1.0) === 1); /* true */

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let fromString: string => option(int);

Converts a given string to an int. Returns Some(int) when the input is a number, None otherwise.

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Js.log(Belt.Int.fromString("1") === Some(1)); /* true */

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let toString: int => string;

Converts a given int to a string. Uses the JavaScript String constructor under the hood.

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Js.log(Belt.Int.toString(1) === "1"); /* true */

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let (+): (int, int) => int;

Addition of two int values. Same as the addition from Pervasives.

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open Belt.Int;
Js.log(2 + 2 === 4); /* true */

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let (-): (int, int) => int;

Subtraction of two int values. Same as the subtraction from Pervasives.

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open Belt.Int;
Js.log(2 - 1 === 1); /* true */

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let ( * ): (int, int) => int;

Multiplication of two int values. Same as the multiplication from Pervasives.

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open Belt.Int;
Js.log(2 * 2 === 4); /* true */

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let (/): (int, int) => int;

Division of two int values. Same as the division from Pervasives.

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open Belt.Int;
Js.log(4 / 2 === 2); /* true */