微商城開發(fā)公司有哪些比較好百度seo價(jià)格查詢
專欄目標(biāo)
在vue和element UI聯(lián)合技術(shù)棧的操控下,本專欄提供行之有效的源代碼示例和信息點(diǎn)介紹,做到靈活運(yùn)用。
(1)提供vue2的一些基本操作:安裝、引用,模板使用,computed,watch,生命周期(beforeCreate,created,beforeMount,mounted, beforeUpdate,updated, beforeDestroy,destroyed,activated,deactivated,errorCaptured,components,)、 $root , $parent , $children , $slots , $refs , props, $emit , eventbus ,provide / inject, Vue.observable, $listeners, $attrs, $nextTick , v-for, v-if, v-else,v-else-if,v-on,v-pre,v-cloak,v-once,v-model, v-html, v-text, keep-alive,slot-scope, filters, v-bind,.stop, .native, directives,mixin,render,國(guó)際化,Vue Router等
(2)提供element UI的經(jīng)典操作:安裝,引用,國(guó)際化,el-row,el-col,el-button,el-link,el-radio,el-checkbox ,el-input,el-select, el-cascader, el-input-number, el-switch,el-slider, el-time-picker, el-date-picker, el-upload, el-rate, el-color-picker, el-transfer, el-form, el-table, el-tree, el-pagination,el-badge,el-avatar,el-skeleton, el-empty, el-descriptions, el-result, el-statistic, el-alert, v-loading, $message, $alert, $prompt, $confirm , $notify, el-breadcrumb, el-page-header,el-tabs ,el-dropdown,el-steps,el-dialog, el-tooltip, el-popover, el-popconfirm, el-card, el-carousel, el-collapse, el-timeline, el-divider, el-calendar, el-image, el-backtop,v-infinite-scroll, el-drawer等
本文章目錄
- 專欄目標(biāo)
- 需求背景
- 示例效果
- 示例源代碼(共90行)
- 核心代碼
需求背景
在vue項(xiàng)目開發(fā)中,經(jīng)常用到某些提示。勾選后,要求今天不再?gòu)棿疤崾?。這個(gè)示例是一個(gè)演示,通過設(shè)置和獲取localStorage中某個(gè)值來判斷是否提示。
示例效果
示例源代碼(共90行)
/*
* @Author: 大劍師蘭特(xiaozhuanlan),還是大劍師蘭特(CSDN)
* @此源代碼版權(quán)歸大劍師蘭特所有,可供學(xué)習(xí)或商業(yè)項(xiàng)目中借鑒,未經(jīng)授權(quán),不得重復(fù)地發(fā)表到博客、論壇,問答,git等公共空間或網(wǎng)站中。
* @Email: 2909222303@qq.com
* @weixin: gis-dajianshi
* @First published in CSDN
* @First published time: 2022-09-08
*/
<template><div class="container"><div class="top"><h3>vue項(xiàng)目,勾選后今天不再?gòu)棿疤崾?</h3><div class="author">大劍師蘭特, 還是大劍師蘭特,gis-dajianshi</div></div><h4><el-button type="primary" @click="showInfo()"> 點(diǎn)擊判斷提示 </el-button></h4><div class="tipBox" v-if="isbox"><h3>提示彈窗</h3><el-checkbox v-model="noTip" @change='noTipAgain()'>不再提示</el-checkbox><div class="close" @click="isbox=false"><el-button type="primary" size="mini"> 關(guān)閉 </el-button></div></div></div>
</template>
<script>import dayjs from "dayjs";export default {data() {return {isbox: false,noTip: false,}},methods: {showInfo() {let noTipTime = localStorage.getItem('noTipTime')let curtime = dayjs().unix() * 1000if (noTipTime) {if (noTipTime > curtime) {this.$message({type: "error",message: '今天已經(jīng)不再提示了!'})} else {this.isbox = true;this.noTip = false}} else {this.isbox = true;}},noTipAgain() {if (this.noTip) {let curdate = dayjs(new Date()).format('YYYY-MM-DD');let curdayTime = dayjs(curdate).unix() * 1000 + 24 * 60 * 60 * 1000localStorage.setItem('noTipTime', curdayTime)}},},}
</script>
<style scoped>.container {width: 1000px;height: 580px;margin: 50px auto;border: 1px solid green;position: relative;}.top {margin: 0 auto 30px;padding: 10px 0;background: orange;color: #fff;}.tipBox {position: absolute;left: calc(50% - 150px);top: calc(50%);width: 300px;height: 200px;border: 1px solid blue;background: #f4f4f4;}.close {margin-top: 60px;}
</style>
核心代碼
showInfo() {let noTipTime = localStorage.getItem('noTipTime')let curtime = dayjs().unix() * 1000if (noTipTime) {if (noTipTime > curtime) {this.$message({type: "error",message: '今天已經(jīng)不再提示了!'})} else {this.isbox = true;this.noTip = false}} else {this.isbox = true;}},noTipAgain() {if (this.noTip) {let curdate = dayjs(new Date()).format('YYYY-MM-DD');let curdayTime = dayjs(curdate).unix() * 1000 + 24 * 60 * 60 * 1000localStorage.setItem('noTipTime', curdayTime)}},