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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  9. 017number_isFinite.js
  10. 018number_isNaN.js
  11. 019number_negative_zero.js
  12. 020number_float_rounding_error.js
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  19. 035stringmethods_charAt.js
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  28. 035stringmethods_toUpperCase.js
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  30. 036string_regexTest.js
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  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
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  40. 054ReferenceError.js
  41. 055global_object_browser.js
  42. 055global_object_node.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         849  0.5  0.5 1318144 86836 ?       Ssl  Oct08 283:01 node /home/sasa/regoch/regoch-www/server
sasa         880  0.4  0.5 1319240 87500 ?       Ssl  Oct08 235:37 node /home/sasa/dex8/dex8-www/server/index.js
sasa         890  0.5  0.5 11797800 85588 ?      Ssl  Oct08 334:18 node /home/sasa/mikosoft_hr/www-mikosoft-hr/server/index.js
sasa         903  0.7  0.5 1329652 82244 ?       Ssl  Oct08 430:48 node /home/sasa/mikosoft-info/api-mikosoft-info/starter.js
sasa         929  0.4  0.4 1300184 68900 ?       Ssl  Oct08 226:10 node /home/sasa/mikosoft-info/www-mikosoft-info/server/index.js
sasa         943  0.4  0.4 1300808 66124 ?       Ssl  Oct08 233:16 node /home/sasa/dex8/dex8-kiosk/server/index.js
sasa         980  0.6  0.5 11805104 92280 ?      Ssl  Oct08 364:30 node /home/sasa/mikosoft-info/dodo-mikosoft-info/server/index.js
sasa         981  0.7  0.6 1148036 103904 ?      Ssl  Oct08 394:53 node /home/sasa/voovuu/voovuu-api/starter.js
sasa        1039  0.9  1.4 11953572 245320 ?     Ssl  Oct08 554:57 node /home/sasa/voovuu/voovuu-pub/server/index.js
sasa     2044488  0.3  0.4 1298112 67252 ?       Ssl  Nov01  77:16 node /home/sasa/dex8/dex8-panel/server/index.js
sasa     2574087  0.3  0.4 11792920 76892 ?      Ssl  Nov08  41:51 node /home/sasa/@mikosoft/dodo-examples/server/index.js
sasa     2702010  0.4  0.6 22296952 100188 ?     Ssl  Nov10  34:59 node /home/sasa/dex8/dex8-worker/starter.js
sasa     2702011  0.3  0.4 1100276 66344 ?       Ssl  Nov10  31:09 node /home/sasa/dex8/dex8-worker/starter.js
sasa     2702018  0.3  0.3 1099884 65412 ?       Ssl  Nov10  31:12 node /home/sasa/dex8/dex8-worker/starter.js
sasa     2702019  0.3  0.4 1100516 66600 ?       Ssl  Nov10  31:10 node /home/sasa/dex8/dex8-worker/starter.js
sasa     2702046  0.9  0.7 22311780 123896 ?     Ssl  Nov10  84:16 node /home/sasa/dex8/dex8-worker/starter.js
sasa     2702047  0.3  0.3 1099492 65180 ?       Ssl  Nov10  31:27 node /home/sasa/dex8/dex8-worker/starter.js
sasa     2702088  0.3  0.3 1100008 65544 ?       Ssl  Nov10  31:12 node /home/sasa/dex8/dex8-worker/starter.js
sasa     2702089  0.3  0.4 1099752 66260 ?       Ssl  Nov10  31:08 node /home/sasa/dex8/dex8-worker/starter.js
sasa     2702137  0.3  0.4 1099864 66072 ?       Ssl  Nov10  30:59 node /home/sasa/dex8/dex8-worker/starter.js
sasa     2702139  0.4  0.6 22297196 101056 ?     Ssl  Nov10  35:31 node /home/sasa/dex8/dex8-worker/starter.js
sasa     3097623  1.1  0.8 11716736 131936 ?     Ssl  Nov13  44:00 node /home/sasa/dex8/dex8-api/starter.js
www-data 3364425  0.0  0.0   2608   604 ?        S    08:02   0:00 sh -c ps -aux | grep node
www-data 3364427  0.0  0.0   3304   732 ?        S    08:02   0:00 grep node