compare-functions/index.js

Functions to check equality for variouse criterea

const curry = require('curry');
const rb = require("rainboom");
const funcs = {
    strict: (a, b) => a === b,
    asString: (a, b) => a.toString() === b.toString(),
    setContent: (a, b) => (a instanceof Set) && (b instanceof Set) && a.size === b.size && rb(a).every(v => b.has(v)),
    functionSource: (a, b) => (typeof a === "function") && (typeof a === "function") && (a.toString() === b.toString()),
    mapContent: (a, b) => (a instanceof Map) && (b instanceof Map) && a.size === b.size && rb(a).every(([k, v]) => b.has(k) && b.get(k) === v),
    near: (distance, a, b) => (typeof a === "number") && (typeof b === "number") && Math.abs(a - b) <= distance,
};
module.exports = Object.freeze(rb().entries(funcs).map(([k, v]) => [k, curry(v)]).toObject());