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Can I add methods to an object which is already declared in Javascript ??? If yes then how??
2 Respuestas
+ 7
like this?
var obj={};
obj.foo=function(){return 42;}
alert(obj.foo())
or something that determined on runtime?
var obj={};
if(prompt()==="1")
obj.foo=function(){return 42;}
else
obj.foo=function(){return 24;}
alert(obj.foo())
0
I'm sorry if the question is stupid. I actually wanted to create a code to speed up or down the text in marquee tag. Can you tell me what's the problem here in the code below.
<body>
<button id=fast onclick=faster()>Faster</button>
<button id=slow onclick=slower()>Slower</button></br>
<marquee scrollamount=3>Are you ready!</marquee>
<script>
var f = document.getElementById("fast");
var s = document.getElementById("slow");
var m = document.getElementsByTagName("marquee");
m[0].fast= function(){return ++this.scrollamount};
m[0].slow= function(){return ++this.scrollamount};
f.onclick=function faster()
{
m[0].fast;
}
s.onclick=function slower()
{
m[0].slow;
}
</script>
</body>
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