I wish to append or prepend some html to the page.
Rather than my function going:
var action = 'prepend'; // may be prepend or append
var htmlStr = '<strong>text example</strong>';
var obj = $('#wrapExample');
if(action == 'prepend'){
$(obj).prepend(htmlStr);
}else{
$(obj).append(htmlStr);
}
Can I somehow eval the 'action' variable e.g.
eval('$(obj).' + action + '(' + htmlStr + ')');
Are you perhaps looking for
$(obj)[action](htmlStr)
Saying someobject["something"] and someobject.something are equivalent in javascript.
Instead of eval you can use:
$(obj)[action](htmlStr);
The following are equivalent:
a.foo
a["foo"]
Therefore, when you have something like:
var property = "foo";
You can do:
a[property]
to programmatically access a property/method.
Also, since your obj variable is already a jQuery result, you can skip the additional $:
obj[action](htmlStr);
I think it should be
eval('$(obj).' + action + '(htmlStr);');
