Javascript format number keep two decimal point example code _ javascript skills

There are many ways to retain two decimal places in tabular numbers. The following article will introduce how to use js to implement them in detail: multiple methods for formatting data in JavaScript to retain two decimal places

Best method:

Keep the two. It seems like this is the case.

The Code is as follows:

Var a = 9.39393;
Alert (a. toFixed (2 ));

Note:

Alibaba (Number. toFixed (9.39393 ));

9.39 is returned.
However, only ie5.5 or later versions are supported.

Other methods:

Function roundFun (numberRound, roundDigit) // rounding, the number of reserved digits is roundDigit {if (numberRound> = 0) {var tempNumber = parseInt (numberRound * Math. pow (10, roundDigit) + 0.5)/Math. pow (10, roundDigit); return tempNumber;} else {numberRound1 =-numberRound var tempNumber = parseInt (numberRound1 * Math. pow (10, roundDigit) + 0.5)/Math. pow (10, roundDigit); return-tempNumber ;}}

Method 2:

《script》  tmp = "1234567.57232"  result = tmp.substr(0,tmp.indexOf(".")+3);  alert(result);  《script》 

Method 3:

The Code is as follows:

Var a = 3.1415926;
A = a. toFixed (2); // retain 2 bits, but the result is of the String type.
A = parseFloat (a); // convert the result to float
// Use the following steps:
A = parseFloat (a. toFixed (2 ));