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(vue操作storage)Vue plugin for work with local storage,session storage and memo

时间:2020-02-07 14:55:00 来源:互联网 作者: 神秘的大神 字体:

vue-ls

https://www.npmjs.com/package/vue-ls

NPM

npm install vue-ls --save

Yarn

yarn add vue-ls

Usage

Vue storage API.

import Storage from 'vue-ls';
 
options = {
  namespace: 'vuejs__', // key prefix
  name: 'ls', // name variable Vue.[ls] or this.[$ls],
  storage: 'local', // storage name session, local, memory
};
 
Vue.use(Storage, options);
 
//or
//Vue.use(Storage);
 
new Vue({
    el: '#app',
    mounted: function() {
        Vue.ls.set('foo', 'boo');
        //Set expire for item
        Vue.ls.set('foo', 'boo', 60 * 60 * 1000); //expiry 1 hour
        Vue.ls.get('foo');
        Vue.ls.get('boo', 10); //if not set boo returned default 10
        
        let callback = (val, oldVal, uri) => {
          console.log('localStorage change', val);
        } 
        
        Vue.ls.on('foo', callback) //watch change foo key and triggered callback
        Vue.ls.off('foo', callback) //unwatch
        
        Vue.ls.remove('foo');
    }
});

Global

Vue.ls

Context

this.$ls

API

Vue.ls.get(name, def)

Returns value under name in storage. Internally parses the value from JSON before returning it.

def: default null, returned if not set name.

Vue.ls.set(name, value, expire)

Persists value under name in storage. Internally converts the value to JSON.

expire: default null, life time in milliseconds name

Vue.ls.remove(name)

Removes name from storage. Returns true if the property was successfully deleted, and false otherwise.

Vue.ls.clear()

Clears storage.

Vue.ls.on(name, callback)

Listen for changes persisted against name on other tabs. Triggers callback when a change occurs, passing the following arguments.

newValue: the current value for name in storage, parsed from the persisted JSON
oldValue: the old value for name in storage, parsed from the persisted JSON
url: the url for the tab where the modification came from

Vue.ls.off(name, callback)

Removes a listener previously attached with Vue.ls.on(name, callback).