本文介绍了如何在2024年的Web前端开发中利用Vue.js和Echarts显示热力地图信息。内容包括城市代码映射数据和前端面试中关于Ajax的相关问题，如Ajax请求原理、异步同步区别等。
其实前端开发的知识点就那么多，面试问来问去还是那么点东西。所以面试没有其他的诀窍，只看你对这些知识点准备的充分程度。so，出去面试时先看看自己复习到了哪个阶段就好。
这里再分享一个复习的路线：（以下体系的复习资料是我从各路大佬收集整理好的）
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《前端开发四大模块核心知识笔记》
最后，说个题外话，我在一线互联网企业工作十余年里，指导过不少同行后辈。帮助很多人得到了学习和成长。
我意识到有很多经验和知识值得分享给大家，也可以通过我们的能力和经验解答大家在IT学习中的很多困惑，所以在工作繁忙的情况下还是坚持各种整理和分享。
可以了，这样就，我的效果是出来了。
china-main-city-map.js 文件
export const cityMap = {
“安徽省”: “340000”,
“澳门特别行政区”: ‘820000’,
“北京市”: ‘110000’,
“重庆市”:‘500000’,
“福建省”: ‘350000’,
“甘肃省”: ‘620000’,
“广东省”: ‘440000’,
“广西省”: “450000”,
“贵州省”: ‘520000’,
“海南省”: ‘460000’,
“河北省”: ‘130000’,
“黑龙江省”: ‘230000’,
“河南省”: ‘410000’,
“湖北省”: ‘420000’,
“湖南省”: ‘430000’,
“江苏省”: ‘320000’,
“江西省”: ‘360000’,
“吉林省”: ‘220000’,
“辽宁省”: ‘210000’,
“内蒙古自治区”: ‘150000’,
“宁夏回族自治区”: ‘640000’,
“青海省”: ‘630000’,
“山东省”: ‘370000’,
“上海”: ‘310000’,
“山西省”: ‘140000’,
“四川省”: ‘510000’,
“台湾”: ‘710000’,
“天津”: ‘120000’,
“新疆维吾尔自治区”: ‘650000’,
“陕西省”: ‘610000’,
“西藏自治区”: ‘540000’,
“云南省”: ‘530000’,
“浙江省”: ‘330000’,
“香港特别行政区”: ‘810000’,
“天津市”: “120100”,
“上海市”: “310100”,
“重庆市”: “500100”,
“崇明县”: “310200”,
“湖北省直辖县市”: “429000”,
“铜仁市”: “522200”,
“毕节市”: “522400”,
“石家庄市”: “130100”,
“唐山市”: “130200”,
“秦皇岛市”: “130300”,
“邯郸市”: “130400”,
“邢台市”: “130500”,
“保定市”: “130600”,
“张家口市”: “130700”,
“承德市”: “130800”,
“沧州市”: “130900”,
“廊坊市”: “131000”,
“衡水市”: “131100”,
“太原市”: “140100”,
“大同市”: “140200”,
“阳泉市”: “140300”,
“长治市”: “140400”,
“晋城市”: “140500”,
“朔州市”: “140600”,
“晋中市”: “140700”,
“运城市”: “140800”,
“忻州市”: “140900”,
“临汾市”: “141000”,
“吕梁市”: “141100”,
“呼和浩特市”: “150100”,
“包头市”: “150200”,
“乌海市”: “150300”,
“赤峰市”: “150400”,
“通辽市”: “150500”,
“鄂尔多斯市”: “150600”,
“呼伦贝尔市”: “150700”,
“巴彦淖尔市”: “150800”,
“乌兰察布市”: “150900”,
“兴安盟”: “152200”,
“锡林郭勒盟”: “152500”,
“阿拉善盟”: “152900”,
“沈阳市”: “210100”,
“大连市”: “210200”,
“鞍山市”: “210300”,
“抚顺市”: “210400”,
“本溪市”: “210500”,
“丹东市”: “210600”,
“锦州市”: “210700”,
“营口市”: “210800”,
“阜新市”: “210900”,
“辽阳市”: “211000”,
“盘锦市”: “211100”,
“铁岭市”: “211200”,
“朝阳市”: “211300”,
“葫芦岛市”: “211400”,
“长春市”: “220100”,
“吉林市”: “220200”,
“四平市”: “220300”,
“辽源市”: “220400”,
“通化市”: “220500”,
“白山市”: “220600”,
“松原市”: “220700”,
“白城市”: “220800”,
“延边朝鲜族自治州”: “222400”,
“哈尔滨市”: “230100”,
“齐齐哈尔市”: “230200”,
“鸡西市”: “230300”,
“鹤岗市”: “230400”,
“双鸭山市”: “230500”,
“大庆市”: “230600”,
“伊春市”: “230700”,
“佳木斯市”: “230800”,
“七台河市”: “230900”,
“牡丹江市”: “231000”,
“黑河市”: “231100”,
“绥化市”: “231200”,
“大兴安岭地区”: “232700”,
“南京市”: “320100”,
“无锡市”: “320200”,
“徐州市”: “320300”,
“常州市”: “320400”,
“苏州市”: “320500”,
“南通市”: “320600”,
“连云港市”: “320700”,
“淮安市”: “320800”,
“盐城市”: “320900”,
“扬州市”: “321000”,
“镇江市”: “321100”,
“泰州市”: “321200”,
“宿迁市”: “321300”,
“杭州市”: “330100”,
“宁波市”: “330200”,
“温州市”: “330300”,
“嘉兴市”: “330400”,
“湖州市”: “330500”,
“绍兴市”: “330600”,
“金华市”: “330700”,
“衢州市”: “330800”,
“舟山市”: “330900”,
“台州市”: “331000”,
“丽水市”: “331100”,
“合肥市”: “340100”,
“芜湖市”: “340200”,
“蚌埠市”: “340300”,
“淮南市”: “340400”,
“马鞍山市”: “340500”,
“淮北市”: “340600”,
“铜陵市”: “340700”,
“安庆市”: “340800”,
“黄山市”: “341000”,
“滁州市”: “341100”,
“阜阳市”: “341200”,
“宿州市”: “341300”,
“六安市”: “341500”,
“亳州市”: “341600”,
“池州市”: “341700”,
“宣城市”: “341800”,
“福州市”: “350100”,
“厦门市”: “350200”,
“莆田市”: “350300”,
“三明市”: “350400”,
“泉州市”: “350500”,
“漳州市”: “350600”,
“南平市”: “350700”,
“龙岩市”: “350800”,
“宁德市”: “350900”,
“南昌市”: “360100”,
“景德镇市”: “360200”,
“萍乡市”: “360300”,
“九江市”: “360400”,
“新余市”: “360500”,
“鹰潭市”: “360600”,
“赣州市”: “360700”,
“吉安市”: “360800”,
“宜春市”: “360900”,
“抚州市”: “361000”,
ajax
1)ajax请求的原理/ 手写一个ajax请求？
2)readyState？
3)ajax异步与同步的区别？
4)ajax传递中文用什么方法？
开源分享：【大厂前端面试题解析+核心总结学习笔记+真实项目实战+最新讲解视频】
1600",
“池州市”: “341700”,
“宣城市”: “341800”,
“福州市”: “350100”,
“厦门市”: “350200”,
“莆田市”: “350300”,
“三明市”: “350400”,
“泉州市”: “350500”,
“漳州市”: “350600”,
“南平市”: “350700”,
“龙岩市”: “350800”,
“宁德市”: “350900”,
“南昌市”: “360100”,
“景德镇市”: “360200”,
“萍乡市”: “360300”,
“九江市”: “360400”,
“新余市”: “360500”,
“鹰潭市”: “360600”,
“赣州市”: “360700”,
“吉安市”: “360800”,
“宜春市”: “360900”,
“抚州市”: “361000”,
ajax
1)ajax请求的原理/ 手写一个ajax请求？
2)readyState？
3)ajax异步与同步的区别？
4)ajax传递中文用什么方法？
[外链图片转存中…(img-oEg9XbRU-1714916338283)]
[外链图片转存中…(img-lHd8V4PS-1714916338284)]
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