10 examples of 'console.log(typeof typeof 1)' in JavaScript

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14function typeOf(object) {
15 var type = typeof object;
16 if (type === 'undefined') {
17 return 'undefined';
18 }
19 if (object) {
20 type = object.constructor.name;
21 } else if (type === 'object') {
22 type = toString.call(object).slice(8, -1);
23 }
24 return type.toLowerCase();
25}
16function _typeof(obj) {
17 if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") {
18 _typeof = function (obj) {
19 return typeof obj;
20 };
21 } else {
22 _typeof = function (obj) {
23 return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj;
24 };
25 }
26
27 return _typeof(obj);
28}
368typeOf: function typeOf(obj) {
369 return ({}).toString.call(obj).match(/\s([a-zA-Z]+)/)[1].toLowerCase();
370},
35function typeOf(obj) {
36 return Object.prototype.toString.call(obj).match(/\[object\s*([^\]]+)\]/)[1].toLowerCase();
37}
386public static typeof(object: any): string {
387 return Object.prototype.toString.call(object).match(/\s([a-zA-Z]+)/)[1].toLowerCase();
388}
39function typeOf(object) {
40 if (typeof object === 'object' && object !== null) {
41 var $$typeof = object.$$typeof;
42
43 switch ($$typeof) {
44 case REACT_ELEMENT_TYPE:
45 var type = object.type;
46
47 switch (type) {
48 case REACT_ASYNC_MODE_TYPE:
49 case REACT_FRAGMENT_TYPE:
50 case REACT_PROFILER_TYPE:
51 case REACT_STRICT_MODE_TYPE:
52 return type;
53 default:
54 var $$typeofType = type && type.$$typeof;
55
56 switch ($$typeofType) {
57 case REACT_CONTEXT_TYPE:
58 case REACT_FORWARD_REF_TYPE:
59 case REACT_PROVIDER_TYPE:
60 return $$typeofType;
61 default:
62 return $$typeof;
63 }
64 }
65 case REACT_PORTAL_TYPE:
66 return $$typeof;
67 }
68 }
69
70 return undefined;
71}
18function _typeof(obj) {
19 if (typeof Symbol === 'function' && typeof Symbol.iterator === 'symbol') {
20 _typeof = function _typeof(obj) {
21 return typeof obj;
22 };
23 } else {
24 _typeof = function _typeof(obj) {
25 return obj && typeof Symbol === 'function' && obj.constructor === Symbol && obj !== Symbol.prototype
26 ? 'symbol'
27 : typeof obj;
28 };
29 }
30 return _typeof(obj);
31}
18function _typeof(obj) {
19 if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") {
20 _typeof = function _typeof(obj) {
21 return typeof obj;
22 };
23 } else {
24 _typeof = function _typeof(obj) {
25 return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj;
26 };
27 }
28 return _typeof(obj);
29}
19utils.typeOf = function typeOf (val) {
20 return Array.isArray(val) ? 'array' : typeof val
21}
100exports.typeOf = function typeOf(item) {
101 if (item === undefined) return T_UNDEFINED ;
102 if (item === null) return T_NULL ;
103
104 var ret = typeof(item) ;
105 if (ret == "object") {
106 if (isArray(item)) ret = T_ARRAY ;
107 else if (item instanceof Function) {
108 ret = item.isClass ? T_CLASS : T_FUNCTION ;
109 } else if ((item instanceof Error) || item.isError) ret = T_ERROR;
110 else if (item.isObject) ret = T_OBJECT ;
111 else if (item.isClass) ret = T_CLASS;
112 else if (item.constructor === Object) ret = T_HASH;
113 else if (item.constructor === Number) ret = T_NUMBER;
114 else if (item.constructor === String) ret = T_STRING;
115 else ret = T_OBJECT;
116
117 } else if (ret === T_FUNCTION) ret = item.isClass ? T_CLASS : T_FUNCTION;
118
119 return ret ;
120};

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