Given a string describing a Javascript function, convert it to a Javascript function

Question

Say I\'ve got a Javascript string like the following

var fnStr = \"function(){blah1;blah2;blah3; }\" ;

(This may be from an expression the

Answer 1

You can also insert the string into a script element and then insert the script element into the page.

script_ele = window.document.createElement("script");
script_ele.innerHTML = 'function my_function(){alert("hi!");}';
window.document.body.appendChild(script_ele);
my_function();