@barchart/common-js/dist/cjs/lang/is.js

Library of common JavaScript utilities

var __defProp = Object.defineProperty;
var __getOwnPropDesc = Object.getOwnPropertyDescriptor;
var __getOwnPropNames = Object.getOwnPropertyNames;
var __hasOwnProp = Object.prototype.hasOwnProperty;
var __export = (target, all) => {
  for (var name in all)
    __defProp(target, name, { get: all[name], enumerable: true });
};
var __copyProps = (to, from, except, desc) => {
  if (from && typeof from === "object" || typeof from === "function") {
    for (let key of __getOwnPropNames(from))
      if (!__hasOwnProp.call(to, key) && key !== except)
        __defProp(to, key, { get: () => from[key], enumerable: !(desc = __getOwnPropDesc(from, key)) || desc.enumerable });
  }
  return to;
};
var __toCommonJS = (mod) => __copyProps(__defProp({}, "__esModule", { value: true }), mod);
var is_exports = {};
__export(is_exports, {
  array: () => array,
  boolean: () => boolean,
  date: () => date,
  extension: () => extension,
  fn: () => fn,
  integer: () => integer,
  iterable: () => iterable,
  large: () => large,
  nan: () => nan,
  negative: () => negative,
  nil: () => nil,
  number: () => number,
  object: () => object,
  positive: () => positive,
  regexp: () => regexp,
  string: () => string,
  undef: () => undef,
  zeroLengthString: () => zeroLengthString
});
module.exports = __toCommonJS(is_exports);
function number(candidate) {
  return typeof candidate === "number" && !isNaN(candidate);
}
function nan(candidate) {
  return typeof candidate === "number" && isNaN(candidate);
}
function integer(candidate) {
  return typeof candidate === "number" && !isNaN(candidate) && (candidate | 0) === candidate;
}
function large(candidate) {
  return typeof candidate === "number" && !isNaN(candidate) && isFinite(candidate) && Math.floor(candidate) === candidate;
}
function positive(candidate) {
  return number(candidate) && candidate > 0;
}
function negative(candidate) {
  return number(candidate) && candidate < 0;
}
function iterable(candidate) {
  return !nil(candidate) && !undef(candidate) && fn(candidate[Symbol.iterator]);
}
function string(candidate) {
  return typeof candidate === "string";
}
function date(candidate) {
  return candidate instanceof Date;
}
function regexp(candidate) {
  return candidate instanceof RegExp;
}
function fn(candidate) {
  return typeof candidate === "function";
}
function array(candidate) {
  return Array.isArray(candidate);
}
function boolean(candidate) {
  return typeof candidate === "boolean";
}
function object(candidate) {
  return typeof candidate === "object" && candidate !== null;
}
function nil(candidate) {
  return candidate === null;
}
function undef(candidate) {
  return candidate === void 0;
}
function zeroLengthString(candidate) {
  return string(candidate) && candidate.length === 0;
}
function extension(parent, child) {
  return fn(parent) && fn(child) && child.prototype instanceof parent;
}