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Js 4 effects of retaining decimal points to achieve code sharing_javascript skills

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Release： 2016-05-16 16:52:29

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1. Clear the decimal point to zero:

Copy the code The code is as follows:

function returnFloat0 (value) {
 value = Math.round(parseFloat(value));
 return value;
}

2. Keep one decimal point:

Copy code The code is as follows:

function returnFloat1(value) {
 value = Math.round(parseFloat( value) * 10) / 10;
 if (value.toString().indexOf(".") < 0) {
 value = value.toString() ".0";
 }
 Return value;
}

3. Keep two decimal points

Copy code The code is as follows:

function returnFloat2(value){
 value = Math.round(parseFloat(value) * 100) / 100;
 if (value.toString().indexOf( ".") < 0) {
                                                                                                                                        Two decimal points and one decimal point are automatically filled with zeros

Copy code

The code is as follows:function returnFloat3 (value) { value = Math.round(parseFloat(value) * 100) / 100; var xsd = value.toString().split("."); //Ext.log (xsd.length); if(xsd.length==1){

value = value.toString() ".00";

 return value;
 }
 if(xsd .length>1){
                                                                                                                                                                                              🎜>}

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source：php.cn

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