Javascript retains two decimal places and uses toFixed to implement _ javascript skills

Use Math directly. there is a problem with round (x * 100). Sometimes there is a very small error, and many decimal places are displayed. For example, 0.9996*100 will change to 99.96000000000001. What I want is below, if you are interested, refer to Haha Math. round (x * 100)/100, of course I want Math. round (x * 100. But use Math directly. there is a problem with round (x * 100). Sometimes there is a very small error, and many decimal places, such as 0.9996*100, will become 99.96000000000001. This is not what I want.

Find the javascript function. The number type has a toFixed () function to test:

The Code is as follows:

Alert (0.9996*100). toFixed (2 ));

Use Number. toFixed () to display any decimal places!