Test JS script file

Selected file: 020number_float_rounding_error.js
Compare console.log() outputs in browser and NodeJS.
Notice: Open browser's console in FireBUG!

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  2. 010number_DecToHex.js
  3. 011number_HexToDec.js
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  5. 013number_modulo.js
  6. 014number_division_by_zero.js
  7. 015number_NaN.js
  8. 016number_infinity.js
  9. 017number_isFinite.js
  10. 018number_isNaN.js
  11. 019number_negative_zero.js
  12. 020number_float_rounding_error.js
  13. 030string_htmlTags.js
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  15. 031string_length.js
  16. 032string_concatenate.js
  17. 032string_concatenate2.js
  18. 033string_minus.js
  19. 035stringmethods_charAt.js
  20. 035stringmethods_concate.js
  21. 035stringmethods_indexOf.js
  22. 035stringmethods_match.js
  23. 035stringmethods_match_memory.js
  24. 035stringmethods_replace.js
  25. 035stringmethods_search.js
  26. 035stringmethods_split.js
  27. 035stringmethods_toString.js
  28. 035stringmethods_toUpperCase.js
  29. 035stringmethods_trim.js
  30. 036string_regexTest.js
  31. 040bool_falsy.js
  32. 040bool_truthy.js
  33. 041bool_comparison.js
  34. 042bool_conditional_operator.js
  35. 043bool_logic_operators.js
  36. 044bool_not_exe_function.js
  37. 050null_typeof.js
  38. 051null_comparison.js
  39. 053undefined_var.js
  40. 054ReferenceError.js
  41. 055global_object_browser.js
  42. 055global_object_node.js
  43. 056global_properties_browser.js
  44. 056global_properties_node.js
  45. 057wrapper_object.js
  46. 058wrapper_object_readonly.js
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..:: Source code - 020number_float_rounding_error.js ::..

/**
 * Binary floating point
 */
var x, y, z, num;

x = 0.3 - 0.2;
y = 0.2 - 0.1;
z = 0.5 - 0.4;

console.log(x); //0.09999999999999998
console.log(y); //0.1
console.log(z); //0.09999999999999998

// correction with parseFloat and toPrecision
console.log(parseFloat(z.toPrecision(12))); //0.1
 

..:: NodeJS Console - 020number_float_rounding_error.js ::..

$ node 020number_float_rounding_error.js 
0.09999999999999998
0.1
0.09999999999999998
0.1

$ps -aux | grep node (list all node processes)
sasa         890  0.5  0.5 11797276 84528 ?      Ssl   2024 1531:25 node /home/sasa/mikosoft_hr/www-mikosoft-hr/server/index.js
sasa         903  0.7  0.5 1331320 84116 ?       Ssl   2024 2171:02 node /home/sasa/mikosoft-info/api-mikosoft-info/starter.js
sasa         929  0.3  0.4 1302328 71160 ?       Ssl   2024 1024:24 node /home/sasa/mikosoft-info/www-mikosoft-info/server/index.js
sasa         943  0.3  0.4 1303368 69564 ?       Ssl   2024 1002:44 node /home/sasa/dex8/dex8-kiosk/server/index.js
sasa         980  0.5  0.5 11802336 91368 ?      Ssl   2024 1647:32 node /home/sasa/mikosoft-info/dodo-mikosoft-info/server/index.js
sasa         981  0.5  0.6 1153712 109424 ?      Ssl   2024 1701:56 node /home/sasa/voovuu/voovuu-api/starter.js
sasa        1039  0.8  1.8 12073256 300612 ?     Ssl   2024 2506:47 node /home/sasa/voovuu/voovuu-pub/server/index.js
www-data 1229043  0.0  0.0   2608   536 ?        S    16:56   0:00 sh -c node 23var_null_obj.js
www-data 1229044  0.0  0.1 163016 19324 ?        Sl   16:56   0:00 node 23var_null_obj.js
www-data 1229051  0.0  0.0   2608   604 ?        S    16:56   0:00 sh -c ps -aux | grep node
www-data 1229053  0.0  0.0   3304   724 ?        S    16:56   0:00 grep node
sasa     1788108  0.4  0.5 11806900 87736 ?      Ssl  Mar16 233:49 node /home/sasa/mikosoft-info/crypto-mikosoft-info/server/index.
sasa     1790865  0.7  0.5 11801788 93472 ?      Ssl  Jan30 867:39 node /home/sasa/dex8/dex8-www/server/index.js
sasa     1791369  0.7  0.8 11789608 139676 ?     Ssl  Jan30 869:19 node /home/sasa/dex8/dex8-api/starter.js
sasa     2044488  0.3  0.4 1300372 70244 ?       Ssl   2024 871:10 node /home/sasa/dex8/dex8-panel/server/index.js
sasa     2574087  0.3  0.4 11795224 79340 ?      Ssl   2024 955:29 node /home/sasa/@mikosoft/dodo-examples/server/index.js
sasa     3598766  0.3  0.4 1101148 65876 ?       Ssl   2024 588:31 node /home/sasa/dex8/dex8-worker/starter.js
sasa     3598767  0.3  0.4 22280560 81316 ?      Ssl   2024 598:39 node /home/sasa/dex8/dex8-worker/starter.js
sasa     3598774  0.3  0.4 1101408 66968 ?       Ssl   2024 590:49 node /home/sasa/dex8/dex8-worker/starter.js
sasa     3598775  0.3  0.4 1101152 66356 ?       Ssl   2024 592:16 node /home/sasa/dex8/dex8-worker/starter.js
sasa     3598802  0.6  1.0 22350028 179144 ?     Ssl   2024 1082:36 node /home/sasa/dex8/dex8-worker/starter.js
sasa     3598803  0.3  0.4 1100896 66176 ?       Ssl   2024 588:50 node /home/sasa/dex8/dex8-worker/starter.js
sasa     3598851  0.3  0.4 1102180 67148 ?       Ssl   2024 589:14 node /home/sasa/dex8/dex8-worker/starter.js
sasa     3598853  0.3  0.4 1101412 68552 ?       Ssl   2024 588:57 node /home/sasa/dex8/dex8-worker/starter.js
sasa     3598925  0.3  0.5 1329408 82836 ?       Ssl   2024 613:16 node /home/sasa/dex8/dex8-worker/starter.js
sasa     3598927  0.3  0.4 1297676 66736 ?       Ssl   2024 589:52 node /home/sasa/dex8/dex8-worker/starter.js