Question

I have to convert following function to javascript,

Sub document_onkeydown()
    If window.event.keyCode = 27 Then
        window.event.ReturnValue = false
    ElseIf window.event.keyCode = 13 Then
        If TypeName(window.event.srcElement) = "HTMLInputElement" Or TypeName(window.event.srcElement) = "HTMLSelectElement" Then
            If window.event.srcElement.name <> "QuickSearch" Then
                Call butSearch_OnClick
            End If
       End If
    End If
End Sub

Can anyone help me to convert following points,

 window.event.ReturnValue = false
 TypeName(window.event.srcElement) = "HTMLInputElement"
 window.event.srcElement.name <> "QuickSearch"

Thank you very much

Answer 1

[ 1 ] window.event.ReturnValue = false is similar to return false in Javascript.
It means returning from function when you have nothing to do in particular case.

[ 2 ] event.srcElement points to the objects from which the event is generated.

That is Similar to event.currentTarget in Javascript. And the TypeName() retuns the type of that object, similar to typeof() in Javasript.

[ 3 ] event.srcElement.name returns the name attribute of the object from which the event occured.

  function document_keyDown(event){
        if(event.keyCode === 27){
            return false;
        }
       else if(event.keyCode === 13){
       {
         if((event.currentTarget.tagName) === "TEXT" || (event.currentTarget.tagName) === "SELECT"){
            if(event.currentTarget.name === "QuickSearch"){

                btnSearch_onClick();
            }
         }
       }
    }