Show More
Commit Description:
use uuid cookie
Commit Description:
use uuid cookie
References:
File last commit:
Show/Diff file:
Action:
node_modules/es-to-primitive/es2015.js
| 75 lines
| 2.1 KiB
| application/javascript
| JavascriptLexer
|
| r789 | 'use strict'; | |||
| var hasSymbols = typeof Symbol === 'function' && typeof Symbol.iterator === 'symbol'; | ||||
| var isPrimitive = require('./helpers/isPrimitive'); | ||||
| var isCallable = require('is-callable'); | ||||
| var isDate = require('is-date-object'); | ||||
| var isSymbol = require('is-symbol'); | ||||
| var ordinaryToPrimitive = function OrdinaryToPrimitive(O, hint) { | ||||
| if (typeof O === 'undefined' || O === null) { | ||||
| throw new TypeError('Cannot call method on ' + O); | ||||
| } | ||||
| if (typeof hint !== 'string' || (hint !== 'number' && hint !== 'string')) { | ||||
| throw new TypeError('hint must be "string" or "number"'); | ||||
| } | ||||
| var methodNames = hint === 'string' ? ['toString', 'valueOf'] : ['valueOf', 'toString']; | ||||
| var method, result, i; | ||||
| for (i = 0; i < methodNames.length; ++i) { | ||||
| method = O[methodNames[i]]; | ||||
| if (isCallable(method)) { | ||||
| result = method.call(O); | ||||
| if (isPrimitive(result)) { | ||||
| return result; | ||||
| } | ||||
| } | ||||
| } | ||||
| throw new TypeError('No default value'); | ||||
| }; | ||||
| var GetMethod = function GetMethod(O, P) { | ||||
| var func = O[P]; | ||||
| if (func !== null && typeof func !== 'undefined') { | ||||
| if (!isCallable(func)) { | ||||
| throw new TypeError(func + ' returned for property ' + P + ' of object ' + O + ' is not a function'); | ||||
| } | ||||
| return func; | ||||
| } | ||||
| return void 0; | ||||
| }; | ||||
| // http://www.ecma-international.org/ecma-262/6.0/#sec-toprimitive | ||||
| module.exports = function ToPrimitive(input) { | ||||
| if (isPrimitive(input)) { | ||||
| return input; | ||||
| } | ||||
| var hint = 'default'; | ||||
| if (arguments.length > 1) { | ||||
| if (arguments[1] === String) { | ||||
| hint = 'string'; | ||||
| } else if (arguments[1] === Number) { | ||||
| hint = 'number'; | ||||
| } | ||||
| } | ||||
| var exoticToPrim; | ||||
| if (hasSymbols) { | ||||
| if (Symbol.toPrimitive) { | ||||
| exoticToPrim = GetMethod(input, Symbol.toPrimitive); | ||||
| } else if (isSymbol(input)) { | ||||
| exoticToPrim = Symbol.prototype.valueOf; | ||||
| } | ||||
| } | ||||
| if (typeof exoticToPrim !== 'undefined') { | ||||
| var result = exoticToPrim.call(input, hint); | ||||
| if (isPrimitive(result)) { | ||||
| return result; | ||||
| } | ||||
| throw new TypeError('unable to convert exotic object to primitive'); | ||||
| } | ||||
| if (hint === 'default' && (isDate(input) || isSymbol(input))) { | ||||
| hint = 'string'; | ||||
| } | ||||
| return ordinaryToPrimitive(input, hint === 'default' ? 'number' : hint); | ||||
| }; | ||||