What is the use of string functiong sub(regex,replacement,string)?
define an error-first callback?
What are the differences between synchronous and asynchronous methods of the fs module?
What is purpose of onerror event handler in javascript?
Define perl scripting?
What do you mean by event emmitter?
What are the advantages of josn?
how can you declare a block in Ruby?
What are jsp el implicit objects and how it’s different from jsp implicit objects?
What is deep linking in angular js?
What filters to use for photography?
What is Express in node.js?
why do u choose to go for testing why cant for devoloping
What is a controller javascript?
Explain about filter expression?