14 lines
347 B
JavaScript
14 lines
347 B
JavaScript
'use strict'
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module.exports = function asFloat (value) {
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const n = parseFloat(value)
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// Some values are parsed as valid floats despite being obviously invalid, e.g. "1.o" or "192.168.1.1".
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// In these cases we would want to throw an error.
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if (isNaN(n) || isNaN(value)) {
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throw new Error('should be a valid float')
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}
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return n
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}
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