@quenk/preconditions/lib/function.js

Make data satisfy constraints before using.

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.isFunction = exports.range = void 0;
const result_1 = require("./result");
/**
 * range tests whether a number falls within a specified range.
 */
const range = (min, max) => (value) => value < min
    ? (0, result_1.fail)('range.min', value, { min, max })
    : value > max
        ? (0, result_1.fail)('range.max', value, { min, max })
        : (0, result_1.succeed)(value);
exports.range = range;
/**
 * isFunction tests if a value is a function.
 */
const isFunction = (f) => typeof f === 'function'
    ? (0, result_1.succeed)(f)
    : (0, result_1.fail)('function', f);
exports.isFunction = isFunction;
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