這次帶給大家vue2.x雙向綁定封裝詳解,vue2.x雙向綁定封裝的注意事項有哪些,下面就是實戰案例,一起來看一下。
上碼:
<!DOCTYPE html> <html> <head> <title>vue select2 封装</title> <link href="https://cdnjs.cloudflare.com/ajax/libs/select2/4.0.3/css/select2.min.css" rel="external nofollow" rel="stylesheet" /> <script src="https://unpkg.com/vue/dist/vue.js"></script> <script src="https://cdn.bootcss.com/jquery/2.2.4/jquery.js"></script> <script src="https://cdnjs.cloudflare.com/ajax/libs/select2/4.0.3/js/select2.min.js"></script> <style type="text/css"> .content{ text-align: center; padding:50px; } .content *{ text-align: left; } .select{ width: 350px; } </style> </head> <body> <p class="content" id="vue-example"> <select class="select" v-select2='options' v-model="selectValue"></select> <br/> <span>结果:{{ selectValue }}</span> </p> </body> <script type="text/javascript"> Vue.directive('select2', { inserted: function (el, binding, vnode) { let options = binding.value || {}; $(el).select2(options).on("select2:select", (e) => { // v-model looks for // - an event named "change" // - a value with property path "$event.target.value" el.dispatchEvent(new Event('change', { target: e.target })); //说好的双向绑定,竟然不安套路 }); }, update: function(el, binding, vnode) { $(el).trigger("change"); } }); var vueApp = new Vue({ el: "#vue-example", data: { selectValue: '你还没有选值', options: { data: [ { id: 0, text: 'enhancement' }, { id: 1, text: 'bug' }, { id: 2, text: 'duplicate' }, { id: 3, text: 'invalid' }, { id: 4, text: 'wontfix' } ] } } }); </script> </html>
相信看了本文案例你已經掌握了方法,更多精彩請關注php中文網其它相關文章!
推薦閱讀:
以上是vue2.x雙向綁定封裝詳解的詳細內容。更多資訊請關注PHP中文網其他相關文章!