refactor: Remove lodash dependencies (reactstrap#1658)

* Remove lodash dependencies

* Add tests and remove lodash from locks

Author: theruziev

package.json

@@ -101,9 +101,6 @@
   "dependencies": {
     "@babel/runtime": "^7.2.0",
     "classnames": "^2.2.3",
-    "lodash.isfunction": "^3.0.9",
-    "lodash.isobject": "^3.0.2",
-    "lodash.tonumber": "^4.0.3",
     "prop-types": "^15.5.8",
     "react-lifecycles-compat": "^3.0.4",
     "react-popper": "^1.3.3",

src/Col.js

@@ -1,8 +1,7 @@
-import isobject from 'lodash.isobject';
 import React from 'react';
 import PropTypes from 'prop-types';
 import classNames from 'classnames';
-import { mapToCssModules, tagPropType } from './utils';
+import { mapToCssModules, tagPropType, isObject } from './utils';
 
 const colWidths = ['xs', 'sm', 'md', 'lg', 'xl'];
 const stringOrNumberProp = PropTypes.oneOfType([PropTypes.number, PropTypes.string]);
@@ -66,7 +65,7 @@ const Col = (props) => {
 
     const isXs = !i;
 
-    if (isobject(columnProp)) {
+    if (isObject(columnProp)) {
       const colSizeInterfix = isXs ? '-' : `-${colWidth}-`;
       const colClass = getColumnSizeClass(isXs, colWidth, columnProp.size);
 

src/Label.js

@@ -1,8 +1,7 @@
 import React from 'react';
 import PropTypes from 'prop-types';
 import classNames from 'classnames';
-import isobject from 'lodash.isobject';
-import { mapToCssModules, tagPropType } from './utils';
+import { mapToCssModules, tagPropType, isObject } from './utils';
 
 const colWidths = ['xs', 'sm', 'md', 'lg', 'xl'];
 
@@ -77,7 +76,7 @@ const Label = (props) => {
     const isXs = !i;
     let colClass;
 
-    if (isobject(columnProp)) {
+    if (isObject(columnProp)) {
       const colSizeInterfix = isXs ? '-' : `-${colWidth}-`;
       colClass = getColumnSizeClass(isXs, colWidth, columnProp.size);
 

src/Progress.js

@@ -1,8 +1,7 @@
 import React from 'react';
 import PropTypes from 'prop-types';
 import classNames from 'classnames';
-import toNumber from 'lodash.tonumber';
-import { mapToCssModules, tagPropType } from './utils';
+import { mapToCssModules, tagPropType, toNumber } from './utils';
 
 const propTypes = {
   children: PropTypes.node,

src/__tests__/utils.spec.js

@@ -181,6 +181,86 @@ describe('Utils', () => {
     });
   });
 
+  describe('isFunction', function() {
+    it('should return `true` for functions', function() {
+      function test(){}
+      expect(Utils.isFunction(test)).toBe(true);
+      expect(Utils.isFunction(Array.prototype.slice)).toBe(true);
+    });
+
+    it('should return `true` for async functions', function() {
+      async function asyncFunc() {}
+      expect(Utils.isFunction(asyncFunc)).toEqual(typeof asyncFunc === 'function');
+    });
+
+    it('should return `true` for generator functions', function() {
+      function* genFunc() {}
+      expect(Utils.isFunction(genFunc)).toEqual(typeof genFunc === 'function');
+    });
+
+
+    it('should return `false` for non-functions', function() {
+      function toArgs(array) {
+        return (function() { return arguments; }.apply(undefined, array));
+      }
+      expect(Utils.isFunction(toArgs([1, 2, 3]))).toBe(false);
+      expect(Utils.isFunction([1, 2, 3])).toBe(false);
+      expect(Utils.isFunction(true)).toBe(false);
+      expect(Utils.isFunction(new Date)).toBe(false);
+      expect(Utils.isFunction(new Error)).toBe(false);
+      expect(Utils.isFunction({ 'a': 1 })).toBe(false);
+      expect(Utils.isFunction(1)).toBe(false);
+      expect(Utils.isFunction(/x/)).toBe(false);
+      expect(Utils.isFunction('a')).toBe(false);
+      expect(Utils.isFunction(Symbol("a"))).toBe(false);
+      //
+      if (document) {
+        expect(Utils.isFunction(document.getElementsByTagName('body'))).toBe(false);
+      }
+    });
+
+  });
+
+  describe('isObject', function() {
+    it('should return `true` for objects', function() {
+      function toArgs(array) {
+        return (function() { return arguments; }.apply(undefined, array));
+      }
+      expect(Utils.isObject([1, 2, 3])).toBe(true);
+      expect(Utils.isObject(Object(false))).toBe(true);
+      expect(Utils.isObject(new Date)).toBe(true);
+      expect(Utils.isObject(new Error)).toBe(true);
+      expect(Utils.isObject({ 'a': 1 })).toBe(true);
+      expect(Utils.isObject({ 'a': 1 })).toBe(true);
+      expect(Utils.isObject(Object(0))).toBe(true);
+      expect(Utils.isObject(/x/)).toBe(true);
+      expect(Utils.isObject(Object("a"))).toBe(true);
+      if (document) {
+        expect(Utils.isObject(document.body)).toBe(true);
+      }
+    });
+
+    it('should return `false` for non-objects', function() {
+
+      expect(Utils.isObject(0)).toBe(false);
+      expect(Utils.isObject(false)).toBe(false);
+      expect(Utils.isObject(1)).toBe(false);
+    });
+
+  });
+
+  describe('toNumber', function() {
+    it('should return number', function() {
+      expect(Utils.toNumber("5")).toEqual(5);
+      expect(Utils.toNumber("5.0")).toEqual(5);
+      expect(Utils.toNumber("1.1")).toEqual(1.1);
+      expect(Utils.toNumber("-1.1")).toEqual(-1.1);
+      expect(Utils.toNumber(0/0)).toEqual(NaN);
+      expect(Utils.toNumber(0)).toEqual(0);
+
+    });
+  });
+
   // TODO
   // describe('getScrollbarWidth', () => {
   //   // jsdom workaround https://github.com/tmpvar/jsdom/issues/135#issuecomment-68191941

src/utils.js

@@ -1,4 +1,3 @@
-import isFunction from 'lodash.isfunction';
 import PropTypes from 'prop-types';
 
 // https://github.com/twbs/bootstrap/blob/v4.0.0-alpha.4/js/src/modal.js#L436-L443
@@ -226,6 +225,51 @@ export function isReactRefObj(target) {
   return false;
 }
 
+function getTag(value) {
+  if (value == null) {
+        return value === undefined ? '[object Undefined]' : '[object Null]'
+    }
+    return Object.prototype.toString.call(value)
+}
+
+export function toNumber(value) {
+  const type = typeof value;
+  const NAN = 0 / 0;
+  if (type === 'number') {
+    return value
+  }
+  if (type === 'symbol' || (type === 'object' && getTag(value) === '[object Symbol]')) {
+    return NAN
+  }
+  if (isObject(value)) {
+    const other = typeof value.valueOf === 'function' ? value.valueOf() : value;
+    value = isObject(other) ? `${other}` : other
+  }
+  if (type !== 'string') {
+    return value === 0 ? value : +value
+  }
+  value = value.replace(/^\s+|\s+$/g, '');
+  const isBinary = /^0b[01]+$/i.test(value);
+  return (isBinary || /^0o[0-7]+$/i.test(value))
+    ? parseInt(value.slice(2), isBinary ? 2 : 8)
+    : (/^[-+]0x[0-9a-f]+$/i.test(value) ? NAN : +value)
+}
+
+export function isObject(value) {
+  const type = typeof value;
+  return value != null && (type === 'object' || type === 'function')
+}
+
+export function isFunction(value) {
+  if (!isObject(value)) {
+    return false
+  }
+
+  const tag = getTag(value);
+  return tag === '[object Function]' || tag === '[object AsyncFunction]' ||
+    tag === '[object GeneratorFunction]' || tag === '[object Proxy]'
+}
+
 export function findDOMElements(target) {
   if (isReactRefObj(target)) {
     return target.current;

yarn.lock

@@ -7821,21 +7821,11 @@ lodash.isequal@^4.5.0:
   resolved "https://registry.yarnpkg.com/lodash.isequal/-/lodash.isequal-4.5.0.tgz#415c4478f2bcc30120c22ce10ed3226f7d3e18e0"
   integrity sha1-QVxEePK8wwEgwizhDtMib30+GOA=
 
-lodash.isfunction@^3.0.9:
-  version "3.0.9"
-  resolved "https://registry.yarnpkg.com/lodash.isfunction/-/lodash.isfunction-3.0.9.tgz#06de25df4db327ac931981d1bdb067e5af68d051"
-  integrity sha512-AirXNj15uRIMMPihnkInB4i3NHeb4iBtNg9WRWuK2o31S+ePwwNmDPaTL3o7dTJ+VXNZim7rFs4rxN4YU1oUJw==
-
 lodash.ismatch@^4.4.0:
   version "4.4.0"
   resolved "https://registry.yarnpkg.com/lodash.ismatch/-/lodash.ismatch-4.4.0.tgz#756cb5150ca3ba6f11085a78849645f188f85f37"
   integrity sha1-dWy1FQyjum8RCFp4hJZF8Yj4Xzc=
 
-lodash.isobject@^3.0.2:
-  version "3.0.2"
-  resolved "https://registry.yarnpkg.com/lodash.isobject/-/lodash.isobject-3.0.2.tgz#3c8fb8d5b5bf4bf90ae06e14f2a530a4ed935e1d"
-  integrity sha1-PI+41bW/S/kK4G4U8qUwpO2TXh0=
-
 lodash.isplainobject@^4.0.6:
   version "4.0.6"
   resolved "https://registry.yarnpkg.com/lodash.isplainobject/-/lodash.isplainobject-4.0.6.tgz#7c526a52d89b45c45cc690b88163be0497f550cb"
@@ -7915,11 +7905,6 @@ lodash.templatesettings@^4.0.0:
   dependencies:
     lodash._reinterpolate "^3.0.0"
 
-lodash.tonumber@^4.0.3:
-  version "4.0.3"
-  resolved "https://registry.yarnpkg.com/lodash.tonumber/-/lodash.tonumber-4.0.3.tgz#0b96b31b35672793eb7f5a63ee791f1b9e9025d9"
-  integrity sha1-C5azGzVnJ5Prf1pj7nkfG56QJdk=
-
 lodash.uniq@^4.5.0:
   version "4.5.0"
   resolved "https://registry.yarnpkg.com/lodash.uniq/-/lodash.uniq-4.5.0.tgz#d0225373aeb652adc1bc82e4945339a842754773"