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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.
NOTDIGIT Function. 1  Searches a character string for any character that is not a digit, and returns the first position at which that character is found. 2  data _null_; string='Next = _n_ + 12E3;'; j=0; do until(j=0); j=notdigit(string,j+1); if j=0 then put +3 That's all; else do; c=substr(string,j,1); put +3 j= c=; end; end; run;