Checks if `value` is classified as a `Number` primitive or object. **Note:** To exclude `Infinity`, `-Infinity`, and `NaN`, which are classified as numbers, use the `Number.isFinite` method.
isNumber(3)
// => true
isNumber(Number.MIN_VALUE)
// => true
isNumber(Infinity)
// => true
isNumber('3')
// => false
| Name | Type | Attribute | Description |
|---|---|---|---|
| value | The value to check. |
{
"comment": "/**\r\n * Checks if `value` is classified as a `Number` primitive or object.\r\n *\r\n * **Note:** To exclude `Infinity`, `-Infinity`, and `NaN`, which are\r\n * classified as numbers, use the `Number.isFinite` method.\r\n *\r\n * @since 0.1.0\r\n * @category Lang\r\n * @param {*} value The value to check.\r\n * @returns {boolean} Returns `true` if `value` is a number, else `false`.\r\n * @see isInteger, toInteger, toNumber\r\n * @example\r\n *\r\n * isNumber(3)\r\n * // => true\r\n *\r\n * isNumber(Number.MIN_VALUE)\r\n * // => true\r\n *\r\n * isNumber(Infinity)\r\n * // => true\r\n *\r\n * isNumber('3')\r\n * // => false\r\n */",
"meta": {
"range": [
692,
828
],
"filename": "isNumber.js",
"lineno": 29,
"path": "C:\\Users\\beaujeup\\projects\\jsdoc-template\\examples\\lodash\\lodash-repo",
"code": {
"id": "astnode100005008",
"name": "isNumber",
"type": "FunctionDeclaration",
"paramnames": [
"value"
]
}
},
"description": "Checks if `value` is classified as a `Number` primitive or object.\r\r**Note:** To exclude `Infinity`, `-Infinity`, and `NaN`, which are\rclassified as numbers, use the `Number.isFinite` method.",
"since": "0.1.0",
"tags": [
{
"originalTitle": "category",
"title": "category",
"text": "Lang",
"value": "Lang"
}
],
"params": [
{
"type": {
"names": [
"*"
]
},
"description": "The value to check.",
"name": "value"
}
],
"returns": [
{
"type": {
"names": [
"boolean"
]
},
"description": "Returns `true` if `value` is a number, else `false`."
}
],
"see": [
"isInteger, toInteger, toNumber"
],
"examples": [
"isNumber(3)\r// => true\r\risNumber(Number.MIN_VALUE)\r// => true\r\risNumber(Infinity)\r// => true\r\risNumber('3')\r// => false"
],
"name": "isNumber",
"longname": "isNumber",
"kind": "function",
"scope": "global",
"___id": "T000002R000478",
"___s": true,
"filepath": "isNumber.js"
}