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ayush_vipul's avatar
ayush_vipul
New Contributor III
7 years ago
Solved

Accessing one expression library functions from another expression lib

Hi I have a use case where I am looking forward to access methods of one library(expression file) from another library (expression file 2). Is their a way to achieve this?
expression_library
  • ayush_vipul's avatar
    ayush_vipul
    7 years ago

    Thanks @tstack

    This helped me a lot.
    😀

tstack's avatar
tstack
Former Employee
7 years ago

I think I understand now… Take a look at the Object Literal documentation where it mentions some of the variables that you can use to reference other parts of a nested literal. I think probably want to use __root__ for your situation.

Maybe something like the following (I haven’t tried it out):

{
    value: 42,
    child: {
        adder: x => __root__.value + x
    }
}
ayush_vipul's avatar
ayush_vipul
New Contributor III
7 years ago

thanks @tstack .This was the exact use case.

Also do we have a total number of libraries we can add to a pipeline ?
Do we have a standerd IDE to write expressions ?
or if you can suggest any extension for VS code.

  • tstack's avatar
    tstack
    Former Employee
    7 years ago

    I don’t think so.

    The expression language is mostly a subset of JavaScript, so I would just use an editor with support for that. The main difference is that expression language is just expressions, not statements. Don’t try to use things like if or function(), you need to stick to arrow functions (e.g. (x, y) => x + y). One addition to the e-lang that is not in JavaScript is the match operator. You might find that useful if you have to do a lot of conditionals.

    • ayush_vipul's avatar
      ayush_vipul
      New Contributor III
      7 years ago

      Thanks @tstack

      This helped me a lot.
      😀