reading a statement

[ballouta]

Hello

I am studying a function getCompletion(inputControl, evt)

the html code is

<input id="name" type="text" onkeyup="getCompletion(this, event)"/>

the function starts with statement and my questions about it:

 

evt=evt ? evt : (event? event : null);

 

1) is evt the second parameter sent in the onkeyup event?

2) What is event?

3) how can we read this statement? what does it do?

 

thank you very much

[mens]

Refer to this link for information on the event property.

Brief summary: it gives information as to which key was presses.

[ballouta]

Thank You