I want to do this:
var todo = "text";
$this.eval(todo).split(/\b[\s,\.-:;]*/).length;
So that this would be the resulting function:
$this.text().split(/\b[\s,\.-:;]*/).length;
I can't figure it out...How do I do this?
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possible duplicate of How do I call a dynamically-named method in Javascript? and othersFelix Kling– Felix Kling2011-08-13 15:49:25 +00:00Commented Aug 13, 2011 at 15:49
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Why do you need to call it dynamically like this?Jakub Arnold– Jakub Arnold2011-08-13 15:49:39 +00:00Commented Aug 13, 2011 at 15:49
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2 Answers
var todo = 'text';
$this[todo]().split(/\b[\s,\.-:;]*/).length;
Comments
If you must have it fully dynamic, then you can simply put it all in a string and just eval() it. Something like this:
var obj_name = "text";
var eval_code = "$this."+ obj_name + "(todo).split(/\\b[\\s,\\.-:;]*/).length;";
var result = eval(eval_code);
Also, don't name your variable eval to avoid conflicts with the eval function.
Hope that helps!
2 Comments
Felix Kling
eval is not necessary here.
Michael Petrov
I completely agree. However, the original poster was asking about using a variable as part of a line of code. That's why I said "if you must have it fully dynamic". It's not the right or even good solution, but it answers his question of embedding a variable into a block of code. But yes, it should be clarified that this is not even close to an efficient solution.