A module with functions that perform runtime type checks. There are very simple checks such
as isString(), there also are complex checks.
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Methods
(static) isObject(thing) → {boolean}
Parameters:
| Name | Type | Description |
|---|---|---|
thing |
* |
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Returns:
Type: boolean
(static) isString(thing) → {boolean}
Parameters:
| Name | Type | Description |
|---|---|---|
thing |
* |
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Returns:
Type: boolean
(static) isSymbol(thing) → {boolean}
Parameters:
| Name | Type | Description |
|---|---|---|
thing |
* |
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Returns:
Type: boolean
(static) isNumber(thing) → {boolean}
Parameters:
| Name | Type | Description |
|---|---|---|
thing |
* |
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Returns:
Type: boolean
(static) isInteger(thing) → {boolean}
Parameters:
| Name | Type | Description |
|---|---|---|
thing |
* |
Type-safety adding front end for Number.isInteger.
The reason for not simply using Number.isInteger as-is is that this function adds the type
safety. When we only use Number.isInteger directly we still got "can be undefined" errors
from the tested value in an && chain conditional expression.
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Returns:
Type: boolean
(static) isFunction(thing) → {boolean}
Parameters:
| Name | Type | Description |
|---|---|---|
thing |
* |
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Returns:
Type: boolean
(static) getObjTypeName(o) → {string}
Parameters:
| Name | Type | Description |
|---|---|---|
o |
* | Any object or value |
Returns the value of an object's Symbol.toStringTag
http://2ality.com/2015/09/well-known-symbols-es6.html#symboltostringtag-string
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Returns:
Type: string