Created
August 19, 2020 20:36
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A helper script to set checker types easily
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/** | |
* @file This is a helper script to set checker types easily. | |
* @copyright Daniel Mascena 2020 | |
* @function setTypeOf | |
*/ | |
const setTypeOf = function() { | |
"use strict"; | |
/** @constant | |
* @private | |
*/ | |
const regExp = /\s{1}[Date|Array|RegExp|Promise|Error]+/g, | |
errTypo = new TypeError('Use only Built-in Objects'), | |
oProto = Object.prototype, | |
isProtoOf = oProto.isPrototypeOf.bind(oProto), | |
defProp = Object.defineProperty; | |
/** | |
* @params {(Array|Set|Map)} ArrayOfTypes - Iterable object with built-in objects | |
* @throws Will throw an error if the argument is a non iterable object. | |
*/ | |
return (arrayOfTypes) => { | |
const arr = Object(arrayOfTypes); | |
// check for parameter type and the content | |
if (Symbol.iterator in arr?'forEach' in arr?false:true:true) { | |
throw errTypo; | |
} | |
if (arr.toString().match(regExp).length < arr.length) { | |
console.log('%cPass only standards built-in objects as a values','color: orange; font-size: 12px'); | |
console.log('https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects'); | |
} | |
arr.forEach((fn) => { | |
const fnProto = Object(fn).prototype; | |
if (isProtoOf(fnProto) && !fnProto.hasOwnProperty('typeOf')) { | |
defProp(fnProto, 'typeOf', { | |
get() { | |
return super.toString().slice(8, -1); | |
} | |
}); | |
} | |
}); | |
}; | |
}(); |
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