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added is.class based on es6 class implementation

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Or Schneider 2017-09-22 23:11:53 +03:00
parent 103c5afe6f
commit 0a06209d05
2 changed files with 10 additions and 1 deletions
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3
index.js
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@ -62,6 +62,7 @@ is.symbol = x => typeof x === 'symbol';
is.array = Array.isArray;
is.function = x => typeof x === 'function';
is.class = x => typeof x === 'function' && /^\s*class\s+/.test(x.toString());
is.buffer = Buffer.isBuffer;
is.object = x => {
@ -130,7 +131,7 @@ is.plainObject = x => {
// eslint-disable-next-line no-return-assign
return getObjectType(x) === 'Object' &&
(prototype = Object.getPrototypeOf(x), prototype === null ||
prototype === Object.getPrototypeOf({}));
prototype === Object.getPrototypeOf({}));
};
is.iterable = x => !is.null(x) && !is.undefined(x) && typeof x[Symbol.iterator] === 'function';