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This article introduces the relevant knowledge of "ES6 function with parameters instance analysis". In the operation of actual cases, many people will encounter such a dilemma, so let the editor lead you to learn how to deal with these situations. I hope you can read it carefully and be able to achieve something!

The ES6 function can have its own parameters

If ES6 supports a function with default parameters, determine the operation of undefined and | |:

Instance (ES6)

Function myFunction (xQuery yellow10) {

/ / y is 10 if not passed or undefined

Return Xeroy

}

MyFunction (0Pol 2) / / output 2

MyFunction (5); / / output the default value of the 15j y parameter

Arguments object

The JavaScript function has a built-in object, arguments object.

The argument object contains an array of parameters for function calls.

In this way you can easily find the value of the largest parameter:

Case study

X=findMax (1pyrum 123 500pint 115pr 44pr 88)

Function findMax () {

Var iMagneMaxially ordered [0]

If (arguments.length

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