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2 |
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3 | function factory (type, config, load, typed) {
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4 | const isNumeric = load(require('./isNumeric'))
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5 | /**
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6 | * Test whether a value is an numeric value.
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7 | *
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8 | * In case of a string, true is returned if the string contains a numeric value.
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9 | *
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10 | * Syntax:
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11 | *
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12 | * math.hasNumericValue(x)
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13 | *
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14 | * Examples:
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15 | *
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16 | * math.hasNumericValue(2) // returns true
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17 | * math.hasNumericValue('2') // returns true
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18 | * math.isNumeric('2') // returns false
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19 | * math.hasNumericValue(0) // returns true
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20 | * math.hasNumericValue(math.bignumber(500)) // returns true
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21 | * math.hasNumericValue(math.fraction(4)) // returns true
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22 | * math.hasNumericValue(math.complex('2-4i') // returns false
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23 | * math.hasNumericValue([2.3, 'foo', false]) // returns [true, false, true]
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24 | *
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25 | * See also:
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26 | *
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27 | * isZero, isPositive, isNegative, isInteger, isNumeric
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28 | *
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29 | * @param {*} x Value to be tested
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30 | * @return {boolean} Returns true when `x` is a `number`, `BigNumber`,
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31 | * `Fraction`, `Boolean`, or a `String` containing number. Returns false for other types.
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32 | * Throws an error in case of unknown types.
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33 | */
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34 | const hasNumericValue = typed('hasNumericValue', {
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35 | 'string': function (x) {
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36 | return x.trim().length > 0 && !isNaN(Number(x))
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37 | },
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38 | 'any': function (x) {
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39 | return isNumeric(x)
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40 | }
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41 | })
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42 |
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43 | return hasNumericValue
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44 | }
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45 |
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46 | exports.name = 'hasNumericValue'
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47 | exports.factory = factory
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