Use ES modules (#1)

.circleci/config.yml

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+version: 2
+
+jobs:
+  build:
+    docker:
+      - image: circleci/node:latest
+    steps:
+      - checkout
+      - run: yarn
+      - run: yarn run lint
+      - run: yarn run test  -- -t $CI_CODECOV_TOKEN

.eslintignore

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+dist/
+__tests__/

.eslintrc.js

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+module.exports = {
+  root: true,
+  parserOptions: {
+    sourceType: 'module'
+  },
+  env: {
+    browser: true
+  },
+  extends: 'standard',
+  rules: {
+    'space-before-function-paren': [2, 'never']
+  }
+}

__tests__/index.js

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+const Vue = require('vue')
+const VueBus = require('../dist/vue-bus.common')
+
+Vue.use(VueBus)
+
+test('Vue.bus', () => {
+  const vm = new Vue({
+    data() {
+      return { count: 0 }
+    },
+    created() {
+      this.$bus.on('add', num => { this.count += num })
+      this.$bus.once('addOnce', num => { this.count += num })
+    },
+    methods: {
+      clean() {
+        this.$bus.off('add')
+      }
+    }
+  })
+
+  const obj = {
+    fire() {
+      Vue.bus.emit('add', 1)
+    },
+    fireOnce() {
+      Vue.bus.emit('addOnce', 1)
+    }
+  }
+
+  obj.fire()
+  expect(vm.count).toBe(1)
+
+  obj.fire()
+  expect(vm.count).toBe(2)
+
+  vm.clean()
+  obj.fire()
+  expect(vm.count).toBe(2)
+
+  obj.fireOnce()
+  expect(vm.count).toBe(3)
+
+  obj.fireOnce()
+  expect(vm.count).toBe(3)
+})
+
+test('this.$bus', () => {
+  const vm1 = new Vue({
+    data() {
+      return { count: 0 }
+    },
+    created() {
+      this.$bus.on('add', num => { this.count += num })
+      this.$bus.once('addOnce', num => { this.count += num })
+    },
+    methods: {
+      clean() {
+        this.$bus.off('add')
+      }
+    }
+  })
+
+  const vm2 = new Vue({
+    methods: {
+      fire() {
+        this.$bus.emit('add', 1)
+      },
+      fireOnce() {
+        this.$bus.emit('addOnce', 1)
+      }
+    }
+  })
+
+  vm2.fire()
+  expect(vm1.count).toBe(1)
+
+  vm2.fire()
+  expect(vm1.count).toBe(2)
+
+  vm1.clean()
+  vm2.fire()
+  expect(vm1.count).toBe(2)
+
+  vm2.fireOnce()
+  expect(vm1.count).toBe(3)
+
+  vm2.fireOnce()
+  expect(vm1.count).toBe(3)
+})

dist/vue-bus.common.js

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+/**
+ * vue-bus v1.1.0
+ * https://github.com/yangmingshan/vue-bus
+ * @license MIT
+ */
+'use strict';
+
+function VueBus(Vue) {
+  var bus = new Vue();
+
+  Object.defineProperties(bus, {
+    on: {
+      get: function get() {
+        return this.$on
+      }
+    },
+    once: {
+      get: function get() {
+        return this.$once
+      }
+    },
+    off: {
+      get: function get() {
+        return this.$off
+      }
+    },
+    emit: {
+      get: function get() {
+        return this.$emit
+      }
+    }
+  });
+
+  Vue.bus = bus;
+
+  Object.defineProperty(Vue.prototype, '$bus', {
+    get: function get() {
+      return bus
+    }
+  });
+}
+
+if (typeof window !== 'undefined' && window.Vue) {
+  window.Vue.use(VueBus);
+}
+
+module.exports = VueBus;

dist/vue-bus.esm.js

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+/**
+ * vue-bus v1.1.0
+ * https://github.com/yangmingshan/vue-bus
+ * @license MIT
+ */
+function VueBus(Vue) {
+  var bus = new Vue();
+
+  Object.defineProperties(bus, {
+    on: {
+      get: function get() {
+        return this.$on
+      }
+    },
+    once: {
+      get: function get() {
+        return this.$once
+      }
+    },
+    off: {
+      get: function get() {
+        return this.$off
+      }
+    },
+    emit: {
+      get: function get() {
+        return this.$emit
+      }
+    }
+  });
+
+  Vue.bus = bus;
+
+  Object.defineProperty(Vue.prototype, '$bus', {
+    get: function get() {
+      return bus
+    }
+  });
+}
+
+if (typeof window !== 'undefined' && window.Vue) {
+  window.Vue.use(VueBus);
+}
+
+export default VueBus;

dist/vue-bus.js

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+/**
+ * vue-bus v1.1.0
+ * https://github.com/yangmingshan/vue-bus
+ * @license MIT
+ */
+(function (global, factory) {
+	typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
+	typeof define === 'function' && define.amd ? define(factory) :
+	(global.VueBus = factory());
+}(this, (function () { 'use strict';
+
+function VueBus(Vue) {
+  var bus = new Vue();
+
+  Object.defineProperties(bus, {
+    on: {
+      get: function get() {
+        return this.$on
+      }
+    },
+    once: {
+      get: function get() {
+        return this.$once
+      }
+    },
+    off: {
+      get: function get() {
+        return this.$off
+      }
+    },
+    emit: {
+      get: function get() {
+        return this.$emit
+      }
+    }
+  });
+
+  Vue.bus = bus;
+
+  Object.defineProperty(Vue.prototype, '$bus', {
+    get: function get() {
+      return bus
+    }
+  });
+}
+
+if (typeof window !== 'undefined' && window.Vue) {
+  window.Vue.use(VueBus);
+}
+
+return VueBus;
+
+})));

dist/vue-bus.min.js

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+/**
+ * vue-bus v1.1.0
+ * https://github.com/yangmingshan/vue-bus
+ * @license MIT
+ */
+!function(e,t){"object"==typeof exports&&"undefined"!=typeof module?module.exports=t():"function"==typeof define&&define.amd?define(t):e.VueBus=t()}(this,function(){"use strict";function e(e){var t=new e;Object.defineProperties(t,{on:{get:function(){return this.$on}},once:{get:function(){return this.$once}},off:{get:function(){return this.$off}},emit:{get:function(){return this.$emit}}}),e.bus=t,Object.defineProperty(e.prototype,"$bus",{get:function(){return t}})}return"undefined"!=typeof window&&window.Vue&&window.Vue.use(e),e});