如何用Vue自定义指令实现UUID滚动监听,制作长尾词吸顶表格效果?
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本文共计327个文字,预计阅读时间需要2分钟。
javascriptutils/index.js生成UUID@param withSeparator 是否有分隔符@returns {string}export function generateUUID(withSeparator=true) { let d=new Date().getTime(); if (window.performance && typeof window.performance.now==='function') { d +=performance.now(); // 使用高精度时间 } let uuid='xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, function(c) { let r=(d + Math.random()*16)%16 | 0; d=Math.floor(d/16); return (c==='x' ? r : (r&0x3|0x8)).toString(16); }); return withSeparator ? uuid.replace(/-/g, '-') : uuid;}
utils/index,.js
/** * 生成UUID * @param withSeparator 是否有分割符 * @returns {string} */ export function generateUUID(withSeparator = true) { let d = new Date().getTime() if (window.performance && typeof window.performance.now === 'function') { d += performance.now() } const tpl = withSeparator ? 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx' : 'xxxxxxxxxxxx4xxxyxxxxxxxxxxxxxxx' return tpl.replace(/[xy]/g, function(c) { const r = (d + Math.random() * 16) % 16 | 0 d = Math.floor(d / 16) return (c === 'x' ? r : (r & 0x3 | 0x8)).toString(16) }) }
创建一个generate-uuid/index.js自定义指令文件
import { generateUUID } from '@/utils' const generateUuid = { inserted(el, binding) { const { value } = binding if (!value) { const hasUUID = generateUUID(value) el.setAttribute('data-uuid', hasUUID) if (!hasUUID) { el.parentNode && el.parentNode.removeChild(el) } } } } generateUuid.install = function(Vue) { Vue.directive('generate-uuid', generateUuid) } export default generateUuid
main.js引入
import GenerateUUID from '@/directive/generate-uuid' Vue.use(GenerateUUID)
页面使用
<el-table v-generate-uuid="false" >
使用uuid元素方法
const topRow = this.$refs.multipleTable const hash = topRow.$el.dataset.uuid const tableHeader = document.querySelector(`.el-table[data-uuid="${hash}"] .el-table__header-wrapper`) if (tableHeader) { tableHeader.style.width = topRow.$el.getBoundingClientRect().width + 'px' }
总结
到此这篇关于vue 自定指令生成uuid滚动监听达到tab表格吸顶效果的代码的文章就介绍到这了,更多相关vue滚动监听tab表格吸顶内容请搜索易盾网络以前的文章或继续浏览下面的相关文章希望大家以后多多支持易盾网络!
本文共计327个文字,预计阅读时间需要2分钟。
javascriptutils/index.js生成UUID@param withSeparator 是否有分隔符@returns {string}export function generateUUID(withSeparator=true) { let d=new Date().getTime(); if (window.performance && typeof window.performance.now==='function') { d +=performance.now(); // 使用高精度时间 } let uuid='xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, function(c) { let r=(d + Math.random()*16)%16 | 0; d=Math.floor(d/16); return (c==='x' ? r : (r&0x3|0x8)).toString(16); }); return withSeparator ? uuid.replace(/-/g, '-') : uuid;}
utils/index,.js
/** * 生成UUID * @param withSeparator 是否有分割符 * @returns {string} */ export function generateUUID(withSeparator = true) { let d = new Date().getTime() if (window.performance && typeof window.performance.now === 'function') { d += performance.now() } const tpl = withSeparator ? 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx' : 'xxxxxxxxxxxx4xxxyxxxxxxxxxxxxxxx' return tpl.replace(/[xy]/g, function(c) { const r = (d + Math.random() * 16) % 16 | 0 d = Math.floor(d / 16) return (c === 'x' ? r : (r & 0x3 | 0x8)).toString(16) }) }
创建一个generate-uuid/index.js自定义指令文件
import { generateUUID } from '@/utils' const generateUuid = { inserted(el, binding) { const { value } = binding if (!value) { const hasUUID = generateUUID(value) el.setAttribute('data-uuid', hasUUID) if (!hasUUID) { el.parentNode && el.parentNode.removeChild(el) } } } } generateUuid.install = function(Vue) { Vue.directive('generate-uuid', generateUuid) } export default generateUuid
main.js引入
import GenerateUUID from '@/directive/generate-uuid' Vue.use(GenerateUUID)
页面使用
<el-table v-generate-uuid="false" >
使用uuid元素方法
const topRow = this.$refs.multipleTable const hash = topRow.$el.dataset.uuid const tableHeader = document.querySelector(`.el-table[data-uuid="${hash}"] .el-table__header-wrapper`) if (tableHeader) { tableHeader.style.width = topRow.$el.getBoundingClientRect().width + 'px' }
总结
到此这篇关于vue 自定指令生成uuid滚动监听达到tab表格吸顶效果的代码的文章就介绍到这了,更多相关vue滚动监听tab表格吸顶内容请搜索易盾网络以前的文章或继续浏览下面的相关文章希望大家以后多多支持易盾网络!

