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，國際化，Vue Router等
（2）提供element UI的經(jīng)典操作：安裝，引用，國際化，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
vue在使用element UI tree的時(shí)候，有的時(shí)候是要做逆向處理的，即將樹形結(jié)構(gòu)的數(shù)據(jù)轉(zhuǎn)化為table結(jié)構(gòu)的數(shù)據(jù)，即扁平化的json數(shù)據(jù)。 如何處理呢？文章來源：http://www.zghlxwxcb.cn/news/detail-522463.html
效果圖
文章來源地址http://www.zghlxwxcb.cn/news/detail-522463.html
原始tree結(jié)構(gòu)數(shù)據(jù)：
let newdata= [
{
id: 13,
name: "truck",
order: 1,
parentId: 0,
children: [
{ id: 18, name: "dddd", order: 1, parentId: 13, children: [] }
]
},
{
id: 16,
name: "sca",
order: 1,
parentId: 0,
children: [
{ id: 17, name: "abcf", order: 1, parentId: 16, children: [] }
]
}
];
改變后的格式為：
newdata = [
{"id":18,"name":"dddd","order":1,"parentId":13},
{"id":13,"name":"truck","order":1,"parentId":0},
{"id":17,"name":"abcf","order":1,"parentId":16},
{"id":16,"name":"sca","order":1,"parentId":0}
]
實(shí)現(xiàn)的方法為：
function treeToTable (tree, arr = []){
tree.map((item) => {
// 判斷當(dāng)前itme中是否有children
if (item.children) {
// push添加到arr ...擴(kuò)展運(yùn)算符用于取出參數(shù)對象中的所有可遍歷屬性，拷貝到當(dāng)前對象之中
// treeToTable 函數(shù)，利用了迭代，因?yàn)槲覀儾恢烙卸嗌賯€(gè)children，判斷當(dāng)前數(shù)組中對象是否里面有children，有的話繼續(xù)迭代，直到有沒children了，return會(huì)返回?cái)?shù)組，再用擴(kuò)展運(yùn)算符連接起來，再用push添加
arr.push(...treeToTable(item.children));
// delete 排除item.children
delete item.children;
}
arr.push(item);
});
// 返回結(jié)果
return arr;
};
到了這里，關(guān)于022：vue中tree結(jié)構(gòu)數(shù)據(jù)變成扁平化table結(jié)構(gòu)數(shù)據(jù)的示例的文章就介紹完了。如果您還想了解更多內(nèi)容，請?jiān)谟疑辖撬阉鱐OY模板網(wǎng)以前的文章或繼續(xù)瀏覽下面的相關(guān)文章，希望大家以后多多支持TOY模板網(wǎng)！
