javascript - 使用JavaScript获取数字的小数部分(Get decimal portion of a number with JavaScript)

Question

I have float numbers like 3.2 and 1.6 .(我有漂浮数字，如3.2和1.6 。)

I need to separate the number into the integer and decimal part.(我需要将数字分成整数和小数部分。) For example, a value of 3.2 would be split into two numbers, ie 3 and 0.2(例如，值3.2将被分成两个数字，即3和0.2) Getting the integer portion is easy:(获取整数部分很简单：) n = Math.floor(n); But I am having trouble getting the decimal portion.(但是我无法获得小数部分。) I have tried this:(我试过这个：) remainer = n % 2; //obtem a parte decimal do rating But it does not always work correctly.(但它并不总是正常工作。) The previous code has the following output:(前面的代码具有以下输出：) n = 3.1 => remainer = 1.1 What I am missing here?(我在这里缺少什么？)   ask by Oscar translate from so

Answer 1

Use 1 , not 2 .(使用1 ，而不是2 。)

js> 2.3 % 1 0.2999999999999998