JavaScript - Run the designated line of code

Hi

Suppose I have a script.js file that contain hundred line of code, could I call this file and ONLY run the 开发者_StackOverflow社区designated line of code?

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You should create functions in your script file.
You can then call whichever functions you want.

You can even pass parameters!

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You can do this

var script = ... text of your file ...;
var N = ... line number
eval(script.split("\n")[N]);

This will execute (evaluate) line #N in your script.