JavaScript eval() “syntax error” on parsing a function string

Question

I have a bit of JavaScript code that is specified in a configuration file on the server-side. Since I can\'t specify a JavaScript function in the configuration language (Lu

Answer 1

To do what you want, wrap your string in parentheses:

a = "function(value) { return Math.abs(value);}";
b = eval("("+a+")");
b(-1);