isNumeric.js 501 Bytes
"use strict";
var isArray_1 = require('../util/isArray');
function isNumeric(val) {
    // parseFloat NaNs numeric-cast false positives (null|true|false|"")
    // ...but misinterprets leading-number strings, particularly hex literals ("0x...")
    // subtraction forces infinities to NaN
    // adding 1 corrects loss of precision from parseFloat (#15100)
    return !isArray_1.isArray(val) && (val - parseFloat(val) + 1) >= 0;
}
exports.isNumeric = isNumeric;
;
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