Case Analysis of finally statement

Today, I would like to share with you the relevant knowledge points of finally sentence example analysis, the content is detailed and the logic is clear. I believe most people still know too much about this knowledge, so share this article for your reference. I hope you can get something after reading this article. Let's take a look at it.

Finally statement

The finally statement executes the block of code regardless of whether an exception was generated in the previous try and catch.

Example

Function myFunction () {

Var message, x

Message = document.getElementById ("p01")

Message [XSS _ clean] = ""

X = document.getElementById ("demo") .value

Try {

The if (x = ") throw" value is empty "

If (isNaN (x)) throw "value is not a number"

X = Number (x)

If (x > 10) throw "too big"

If (x < 5) throw "too small"

}

Catch (err) {

Message [XSS _ clean] = "error:" + err + "."

}

Finally {

Document.getElementById ("demo") .value = ""

}

}

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