@sindresorhus/is - npm Package Compare versions

Comparing version 0.2.1 to 0.3.0

index.js

@@ -64,3 +64,3 @@ 'use strict';
 is.number = isOfType('number');
-is.boolean = isOfType('boolean');
+is.boolean = x => x === true || x === false;
 is.symbol = isOfType('symbol');
@@ -165,2 +165,49 @@
 
+const NODE_TYPE_ELEMENT = 1;
+const DOM_PROPERTIES_TO_CHECK = [
+	'innerHTML',
+	'ownerDocument',
+	'style',
+	'attributes',
+	'nodeValue'
+];
+
+is.domElement = x => is.object(x) && x.nodeType === NODE_TYPE_ELEMENT && is.string(x.nodeName) &&
+	!is.plainObject(x) && DOM_PROPERTIES_TO_CHECK.every(property => property in x);
+
+is.infinite = x => x === Infinity || x === -Infinity;
+
+const isEmptyStringOrArray = x => (is.string(x) || is.array(x)) && x.length === 0;
+const isEmptyObject = x => !is.map(x) && !is.set(x) && is.object(x) && Object.keys(x).length === 0;
+const isEmptyMapOrSet = x => (is.map(x) || is.set(x)) && x.size === 0;
+
+is.empty = x => !x || isEmptyStringOrArray(x) || isEmptyObject(x) || isEmptyMapOrSet(x);
+
+const predicateOnArray = (method, predicate, values) => {
+	// `values` is the calling function's "arguments object".
+	// We have to do it this way to keep node v4 support.
+	// So here we convert it to an array and slice off the first item.
+	values = Array.prototype.slice.call(values, 1);
+
+	if (is.function(predicate) === false) {
+		throw new TypeError(`Invalid predicate: ${util.inspect(predicate)}`);
+	}
+
+	if (values.length === 0) {
+		throw new TypeError(`Invalid number of values`);
+	}
+
+	return method.call(values, predicate);
+};
+
+// We have to use anonymous functions for the any() and all() methods
+// to get the arguments since we can't use rest parameters in node v4.
+is.any = function (predicate) {
+	return predicateOnArray(Array.prototype.some, predicate, arguments);
+};
+
+is.all = function (predicate) {
+	return predicateOnArray(Array.prototype.every, predicate, arguments);
+};
+
 module.exports = is;

package.json

 {
   "name": "@sindresorhus/is",
-  "version": "0.2.1",
+  "version": "0.3.0",
   "description": "Type check values: `is.string('🦄') //=> true`",
@@ -47,4 +47,5 @@ "license": "MIT",
     "ava": "*",
+    "jsdom": "^9.12.0",
     "xo": "*"
   }
 }

readme.md

@@ -148,3 +148,39 @@ # is [![Build Status](https://travis-ci.org/sindresorhus/is.svg?branch=master)](https://travis-ci.org/sindresorhus/is)
 
+##### .domElement(value)
 
+Returns `true` if `value` is a DOM Element.
+
+##### .infinite(value)
+
+Check if `value` is `Infinity` or `-Infinity`.
+
+##### .empty(value)
+
+Returns `true` if `value` is falsy or an empty string, array, object, map, or set.
+
+
+##### .any(predicate, ...values)
+
+Returns `true` if **any** of the input `values` returns true in the `predicate`:
+
+```js
+is.any(is.string, {}, true, '🦄');
+//=> true
+
+is.any(is.boolean, 'unicorns', [], new Map());
+//=> false
+```
+
+##### .all(predicate, ...values)
+
+Returns `true` if **all** of the input `values` returns true in the `predicate`:
+
+```js
+is.all(is.object, {}, new Map(), new Set());
+//=> true
+
+is.all(is.string, '🦄', [], 'unicorns');
+//=> false
+```
+
 ## FAQ
@@ -177,2 +213,3 @@
 - [is-empty-iterable](https://github.com/sindresorhus/is-empty-iterable) - Check if an Iterable is empty
+- [is-blob](https://github.com/sindresorhus/is-blob) - Check if a value is a Blob - File-like object of immutable, raw data
 
@@ -179,0 +216,0 @@

New alerts

License Policy Violation

License

This package is not allowed per your license policy. Review the package's license to ensure compliance.

Found 1 instance in 1 package

Fixed alerts

License Policy Violation

License

This package is not allowed per your license policy. Review the package's license to ensure compliance.

Found 1 instance in 1 package

Improved metrics

Total package byte prevSize

13080

increased by23.42%

Lines of code

163

increased by28.35%

Number of lines in readme file

224

increased by19.79%

Worsened metrics

Dev dependency count

3

increased by50%

No dependency changes