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This article mainly shows you "what are the gadgets commonly used in Javascript", the content is simple and clear, and I hope it can help you solve your doubts. Let the editor lead you to study and learn what are the gadgets commonly used in Javascript.

/ / determine whether it is a date data.

Function isDate (dateVal)

{

Var a1=dateVal.replace (- / g, "/")

Var dd=new Date (A1)

Var ss=dd.getYear ()

If (isNaN (ss))

Return false

Else

Return true

}

/ / keep the precision of the decimal point and find that some lower versions of IE cannot use the toFixed function, so I wrote this.

/ / oldData: original data

/ / precision: precision

Function toFixedFunc (oldData,precision)

{

If (oldData.indexOf (".") > = 0)

{

Var diff=oldData.length- (oldData.lastIndexOf (".") + 1)

If (diff

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