Expr Playground is an interactive WebAssembly (Wasm) powered environment to explore and experiment with Expr-lang. It provides a simple and user-friendly interface to write and quickly evaluate Expr expressions.
This project is forked from CEL Playground and modified to support Expr. Please be sure to check out their project and give them a star as well!
Expr Playground is built by compiling Go code to WebAssembly. At present only the Expr engine is available in this environment. We will look at injecting some other utilities to make this environment more useful, on-par with the the CEL standard library and CEL Playground.
Take a look at all the environment options.
The following custom methods are available in the playground:
Returns whether the list is sorted in ascending order.
isSorted([1, 2, 3]) == true
isSorted([1, 3, 2]) == false
isSorted(["apple", "banana", "cherry"]) == true
This custom function is importable in your own Expr code by importing github.com/polds/expr-playground/functions and
adding functions.IsSorted() to your environment. The library supports sorting on types that satisfy the
sort.Interface interface.
Build the Wasm binary:
make buildServe the static files:
make serveWe appreciate your contribution. Please refer to our contributing guideline for further information. This project adheres to the Contributor Covenant code of conduct.
Expr Playground and the original CEL Playground is available under the Apache 2.0 license. See the LICENSE file for more info.