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var numericString = testString.replace(/[^0-9]/g, ''); return numericString; }. This function uses the replace method and the /[^0-9]/g,'' Regular Expression to remove non-numeric characters from the testString variable passed in the parameter list.Save the document and launch your browser. Open the document in your browser.ips & Warnings. 1  This example runs the removeNonNumeric function when the Web page loads. 2  Remove the first three lines of code before that function to stop that from happening. 3  To use the function in production, call the function and pass it a string containing text.
Extract numbers only from text string with Kutools for Excel. If you have Kutools for Excel, with its Extractnumbers function, you can quickly extract numbers only from text strings without remembering any formulas. Kutools for Excel : with more than 120 handy Excel add-ins, free to try with no limitation in 60 days. 1. Click a cell where you want to locate the extracted number.