咸鱼要翻身
 
 
 
 
 

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import assertString from './util/assertString';
var numeric = /^[+-]?([0-9]*[.])?[0-9]+$/;
var numericNoSymbols = /^[0-9]+$/;
export default function isNumeric(str, options) {
assertString(str);
if (options && options.no_symbols) {
return numericNoSymbols.test(str);
}
return numeric.test(str);
}