simple-squiggle

A restricted subset of Squiggle
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emitter.js (727B)

      1 "use strict";
      2 
      3 var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");
      4 
      5 Object.defineProperty(exports, "__esModule", {
      6   value: true
      7 });
      8 exports.mixin = mixin;
      9 
     10 var _tinyEmitter = _interopRequireDefault(require("tiny-emitter"));
     11 
     12 /**
     13  * Extend given object with emitter functions `on`, `off`, `once`, `emit`
     14  * @param {Object} obj
     15  * @return {Object} obj
     16  */
     17 function mixin(obj) {
     18   // create event emitter
     19   var emitter = new _tinyEmitter.default(); // bind methods to obj (we don't want to expose the emitter.e Array...)
     20 
     21   obj.on = emitter.on.bind(emitter);
     22   obj.off = emitter.off.bind(emitter);
     23   obj.once = emitter.once.bind(emitter);
     24   obj.emit = emitter.emit.bind(emitter);
     25   return obj;
     26 }