The example in this article describes the method of converting JS decimals to integers. Share it with everyone for your reference, the details are as follows:
1. Convert decimals to integers
floor: go down
Math.floor(12.9999) = 12
ceil:Move forward
Math.ceil(12.1) = 13;
round: Rounding
Math.round(12.5) = 13
Math.round( 12.4) = 12
2. Decimal digit control
Retain to integer:
exam = Math.round(exam);
Reserve one decimal place:
exam = Math.round(exam * 10) / 10;
Retain two decimal places:
exam = Math.round(exam * 100) / 100;
Reserve three decimal places:
exam = Math.round(exam * 1000) /1000;
Others can be deduced in turn. . . .
I hope this article will be helpful to everyone in JavaScript programming.
For more analysis of JS decimal to integer methods, please pay attention to the PHP Chinese website!