strict-cast v0.2.0

strict-cast

Strict type conversion for javascript. Inspired by reason string convertion functions

Usage

import { float_of_string } from "strict-cast";

float_of_string("10.5"); // 10.5

API

let string_of_bool: boolean => string;

Return the string representation of a boolean. As the returned values may be shared, the user should not modify them directly.

let bool_of_string: string => boolean;

Convert the given string to a boolean. Raise Invalid_argument "bool_of_string" if the string is not "true" or "false".

let string_of_float: float => string;

Return the string representation of a floating-point number.

let float_of_string: string => float;

Convert the given string to a float. Raise Failure "float_of_string" if the given string is not a valid representation of a float.

eslint plugin

The plugin is used to forbid the usage of unsafe Number, Boolean and String type conversions.

yarn add eslint-plugin-strict-cast --dev

module.exports = {
  plugins: ["strict-cast"],
  rules: {
    "strict-cast/strict-cast": "error"
  }
};