'use strict'

const deepMap = require('../../utils/collection/deepMap')

function factory (type, config, load, typed) {

/**

* Test whether a value is an numeric value.

*

* The function is evaluated element-wise in case of Array or Matrix input.

*

* Syntax:

*

* math.isNumeric(x)

*

* Examples:

*

* math.isNumeric(2) // returns true

* math.isNumeric(0) // returns true

* math.isNumeric(math.bignumber(500)) // returns true

* math.isNumeric(math.fraction(4)) // returns true

* math.isNumeric(math.complex('2-4i') // returns false

* math.isNumeric('3') // returns false

* math.isNumeric([2.3, 'foo', false]) // returns [true, false, true]

*

* See also:

*

* isZero, isPositive, isNegative, isInteger

*

* @param {*} x Value to be tested

* @return {boolean} Returns true when `x` is a `number`, `BigNumber`,

* `Fraction`, or `boolean`. Returns false for other types.

* Throws an error in case of unknown types.

*/

const isNumeric = typed('isNumeric', {

'number | BigNumber | Fraction | boolean': function () {

return true

},

'Complex | Unit | string | null | undefined | Node': function () {

return false

},

'Array | Matrix': function (x) {

return deepMap(x, isNumeric)

}

})

return isNumeric

}

exports.name = 'isNumeric'

exports.factory = factory