Javascript division and rounding methods include: 1. Rounding is achieved through the round method; 2. Rounding up is achieved through the ceil method; 3. Rounding down is achieved through the floor method; 4. Forced through parseInt Rounding.
The operating environment of this article: windows7 system, javascript version 1.8.5, Dell G3 computer.
What are the methods of javascript division and rounding?
Four methods of javascript division results rounding
Math.round(7/2)＝4 //四舍五入，round() 方法可把一个数字舍入为最接近的整数。 Math.ceil(7/2)＝4 //强制向上取整，ceil() 方法将数字向上舍入为最接近的整数，并返回结果。如果传递的参数是整数，则不会舍入该值。 Math.floor(7/2)＝3 //强制向下取整，floor() 方法返回小于等于x的最大整数。如果传递的参数是一个整数，该值不变 parseInt(7/2)=3 //强行转化，得出最小整数，同Math.floor方法。parseInt() 函数可解析一个字符串，并返回一个整数。
Recommended study: " JavaScript basic tutorial》
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