JavaScript Learning Record

What you javascript should be aware of during the type conversion process

1. Floating point integral type

   Problem:
   When using the parseInt transform data, it should be determined that the converted data does not appear 0.0000006 such a valid number in the decimal point of the 7th digit and above the data,
   The method of converting the data is parseInt called arg.toString() , which causes the 0.0000008 conversion 8e-7 to occur, and the parseInt(0.0000008) //打印出：8 unwanted condition occurs.
   The right solution:
   Using bitwise operators

function convertToIn(num){ return num >>0; } convertToInt(-Math.PI) //>>-3 --- convertToInt(12.3424) //>>12 convertToInt(-0.000000000004) //>> 0

JavaScript Learning Record