Eval method in ruby

Eval method in ruby executes string/expression passed as parameter.


Example:

ree-1.8.7-2010.01 > eval(“5+3”)
 => 8 
ree-1.8.7-2010.01 > eval(“a=5”)
 => 5 
ree-1.8.7-2010.01 > eval(“b||=a”)
 => 5 

Its part of ruby meta-programming and not recommended approach unless there is no any alternative to do.
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About sandipransing

Web Developer #ruby #rails #JS
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