console-number-format-specifiers-symbol-manual.html (964B)
1 <!DOCTYPE html> 2 <html> 3 <head> 4 <title>Console Number Format Specifiers on Symbols</title> 5 <meta name="author" title="Dominic Farolino" href="mailto:domfarolino@gmail.com"> 6 <meta name="assert" content="Console format specifiers on Symbols"> 7 <link rel="help" href="https://console.spec.whatwg.org/#formatter"> 8 </head> 9 <body> 10 <p>Open the console inside the developer tools. It should contain 15 entries, each of which are:</p> 11 <p><code>NaN</code></p> 12 13 <script> 14 const methods = ["log", "dirxml", "trace", "group", "groupCollapsed"]; 15 16 for (method of methods) { 17 console[method]("%i", Symbol.for("description")); 18 if (method == "group" || method == "groupCollapsed") console.groupEnd(); 19 console[method]("%d", Symbol.for("description")); 20 if (method == "group" || method == "groupCollapsed") console.groupEnd(); 21 console[method]("%f", Symbol.for("description")); 22 if (method == "group" || method == "groupCollapsed") console.groupEnd(); 23 } 24 </script> 25 </body> 26 </html>