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Type checking library\n\n[![npm version](https://badge.fury.io/js/%40js-utilities%2Ftypecheck.svg)](https://badge.fury.io/js/%40js-utilities%2Ftypecheck)\n[![Build Status](https://travis-ci.org/vitalishapovalov/Typecheck.svg?branch=master)](https://travis-ci.org/vitalishapovalov/Typecheck)\n\nA set of super-simple type checkers. Each checker returns `boolean` value. Most checkers are typescript [type predicates](https://www.typescriptlang.org/docs/handbook/advanced-types.html#using-type-predicates).\n\n## Installation\n\n```bash\nnpm i -S @js-utilities/typecheck\n```\n\n## Usage example\n\n```typescript\nimport { isCallable } from \"@js-utilities/typecheck\";\n\nconst a: unknown = global.value;\n\nif (isCallable(a)) a();\n```\n\n## Available checkers:\n\n| Checker              | Return type                    |\n| -------------------- | -------------------------------|\n| `isCallable`         | `boolean`                      |         \n| `isFunction`         | `value is Function`            |         \n| `isArrowFunction`    | `boolean`                      |         \n| `isArray\u003cT\u003e`         | `value is T[]`                 |         \n| `isObject\u003cT\u003e`        | `value is T`                   |         \n| `isBoolean`          | `value is boolean`             |         \n| `isUndefined`        | `value is undefined`           |            \n| `isNumber`           | `value is number`              |         \n| `isString`           | `value is string`              |         \n| `isSymbol`           | `value is symbol`              |         \n| `isNull`             | `value is null`                |   \n| `isMap\u003cT, U\u003e`        | `value is Map\u003cT, U\u003e`           | \n| `isSet\u003cT\u003e`           | `value is Set\u003cT\u003e`              |     \n| `isWeakSet\u003cT\u003e`       | `value is WeakSet\u003cT\u003e`          |         \n| `isWeakMap\u003cT, U\u003e`    | `value is WeakMap\u003cT, U\u003e`       |    \n| `isPromise\u003cT\u003e`       | `value is Promise\u003cT\u003e`          |    \n    \n## License\n\n[MIT License](https://github.com/vitalishapovalov/Typecheck/blob/master/LICENSE)\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fvitalishapovalov%2Ftypecheck","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fvitalishapovalov%2Ftypecheck","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fvitalishapovalov%2Ftypecheck/lists"}