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<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <title>JavaScript Format a Number in Exponential Notation</title> </head> <body> <script> let x = 67.1234; document.write(x.toExponential() + "<br>"); // 6.71234e+1 document.write(x.toExponential(6) + "<br>"); // 6.712340e+1 document.write(x.toExponential(4) + "<br>"); // 6.7123e+1 document.write(x.toExponential(2)); // 6.71e+1 </script> </body> </html>
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