		@@ -24,2 +24,6 @@ # Is

		```js
		yarn add @lvchengbin/is
		```

		## Usage
		@@ -30,18 +34,7 @@
		```js
		import isFunction from '@lvchengbin/is/src/function';
		import array from '@lvchengbin/is/src/array';
		const is = require( '@lvchengbin/is' );

		isFunction( async () => {} );
		isArray( [] );
		```

		If you want to invoke the whole package:

		```js
		import is from '@lvchengbin/is';

		is.function( () => {} );
		is.function( async () => {} );
		is.array( [] );
		```

		## Using in browsers
		@@ -92,59 +85,1 @@
		\| is.window \| import isWindow from '@lvchengbin/is/src/window' \|

		### is.between

		For checking if a number/letter is in an interval

		```js
		import isBetween from '@lvchengbin/is/src/between';

		isBetween( 0, -1, 1 ); // return true
		```

		### is.date

		For checking if an object is a `Date` instance.

		```js
		import isDate from '@lvchengbin/is/src/date';

		isDate( new Date ); // return true
		```

		### is.empty
		an empty value could be am empty object(`{}`), an empty string, an empty array(`[]`), a number `0` or a `false` \|

		For checking if a value is empty, and empty values include empty object ({}), empty string (''), empty array ([]), number 0, false.

		```js
		import isEmpty from '@lvchengbin/is/src/empty';

		isEmpty( '' ); // return true
		isEmpty( [] ); // return true
		isEmpty( {} ); // return true
		isEmpty( 0 ); // return true
		isEmpty( false ); // return true
		```

		### is.false

		For checking if a value is `false`, if the second argument is `true` (by default), the function will check a generalized `false`, it means that the following strings all mean `false`: "false", "no", "0", "", "nay", "n", "disagree".

		```js
		import isFalse from '@lvchengbin/is/src/false';

		isFalse( false ); // returns true
		isFalse( 'false' ); // returns true
		isFalse( 'false', false ); // returns false
		```

		### is.true

		For checking if a value is `true`, if the second argument is `true` (by default), the function will check a generalized `true`, it means that the following strings all mean `true`: "true", "true", "yes", "ok", "1", "yea", "yep", "y", "agree".

		```js
		import isTrue from '@lvchengbin/is/src/true';
		isTrue( true ); // returns true
		isTrue( 'true' ); // returns true
		isTrue( 'true', false ); // returns false
		```

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