https://github.com/supercll/eventhub

a simple eventhub for vue
https://github.com/supercll/eventhub

Last synced: 3 months ago
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a simple eventhub for vue

• Host: GitHub
• URL: https://github.com/supercll/eventhub
• Owner: supercll
• Created: 2020-10-02T08:40:39.000Z (over 4 years ago)
• Default Branch: master
• Last Pushed: 2022-09-03T14:17:06.000Z (almost 3 years ago)
• Last Synced: 2025-02-07T18:51:35.140Z (4 months ago)
• Language: TypeScript
• Size: 6.84 KB
• Stars: 0
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
# EventHub

a simple eventhub for vue

# 使用方法

见test.js文件

# 存在问题：执行off产生数组塌陷

因为每次都是使用splice来切割数组的，所以off之后的事件直接消失，后面的事件就往前补空缺，使得下标index改变

```

const eventHub = new EventHub();

function fn1() {

    console.log(1);

}

function fn2() {

    console.log(2);

}

function fn3() {

    console.log(3);

    eventHub.off("init", fn1);

    eventHub.off("init", fn2);

    eventHub.off("init", fn3);

}

function fn4() {

    console.log(4);

}

function fn5() {

    console.log(5);

}

function fn6() {

    console.log(6);

}

eventHub.on("init", fn1);

eventHub.on("init", fn2);

eventHub.on("init", fn3);

eventHub.on("init", fn4);

eventHub.on("init", fn5);

eventHub.on("init", fn6);

console.log("第一次执行事件");

eventHub.emit("init");

console.log("第二次执行事件");

eventHub.emit("init");

```

# 解决办法

如果有off取消事件，就先将off的事件指向null

在下一次emit触发事件的时候再重构事件数组