feat-flag v1.0.1

Feature flag

Launch code execute by rules

Install

npm i -D feat-flag

Usage

featureFlag = require('feat-flag');
const transformText = featureFlag(code, rules, options);

options

custom babel presets & plugins

e.g:

{
    presets: ['react', 'es2015', 'stage-0'],
    plugins: ['transform-decorators-legacy'],
}

It will read project's .babelrc file if you don't set options.

The current version move all babel-preset-\* and babel-plugin-\* from dependencies to devDependencies

ENSURE you import them by your self.

Code

Wrap code between '@flag_start({condition})' and '@flag_end'.

e.g:

common();
'@flag_start(A || B && !C)'
codeInFlagA();
'@flag_end'
commonElse();

Condition

Support &&, ||, !

Rules

Rules is a json object, like:

{
    A: true,
    B: true,
    C: true
}