Calling a Jquery function from variable value

Question

I have to call Jquery functions using a variable value.

Let consider below scenario:

               var func = "append";   
               $(document).func("<div>Append Welcome</div>");
               func = "prepend";   
               $(document).func("<div> Prepend Welcome</div>");
               func = "html";   
               $(document).func("<div> Insert Html Welcome</div>");

I can use if and else but is there any way to achieve as above.

Is this a good way to do or simply use if and else?

Try $(document)[func]("<div>Append Welcome</div>");

Lauromine
– Lauromine

2015-08-27 13:42:46 +00:00
Commented Aug 27, 2015 at 13:42 — Lauromine
– Lauromine, Commented Aug 27, 2015 at 13:42

Stryner · Accepted Answer · 2015-08-27 13:42:42Z

3

Functions can be accessed using [] syntax, just like regular properties of an object:

var func = "append";   
$(document)[func]("<div>Append Welcome</div>");
func = "prepend";   
$(document)[func]("<div> Prepend Welcome</div>");
func = "html";   
$(document)[func]("<div> Insert Html Welcome</div>");

answered Aug 27, 2015 at 13:42

Stryner

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Leo Javier · Accepted Answer · 2015-08-27 13:44:46Z

2

You can call a function using a variable name with bracket notation: https://jsfiddle.net/leojavier/mw4hm5ma/

var app = {
    alert : function(message){
    alert(message)
    }
}
var funcName = "alert"

app[funcName]('this is a message')

I'm creating an object with a method inside... then I can use the variable value as a name for that function ex Object[variable](arguments)

I hope this helps...

answered Aug 27, 2015 at 13:44

Leo Javier

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