标签：prot 对象 oct filter struct html com char grep
JS面向对象
<script> function num(val) { return val * 8 } function Index(name, age) { this.name = name; this.age = age; } Index.prototype = { constructor: Index } Index.prototype.test = function () { console.log(num(this.age)); } Index.prototype.testB = function () { console.log(num(this.name)); } var a = new Index(‘kang‘, 22) a.test() a.testB() </script>
自调用函数
<script> !function (a, b) { console.log(a + b) }(1, 2); (function (c, d) { console.log(c + d) })(3, 4) // 你甚至可以在function前面加一元操作符号 !function () { /* code */ } (); ~function () { /* code */ } (); -function () { /* code */ } (); +function () { /* code */ } (); </script>
jq $.get(‘a.json‘) 读取json $.grep()过滤json
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Title</title> </head> <body> <select name="province" id="province" class="common-select"></select> <select name="province" id="city" class="common-select"></select> <button>btn</button> <script src="//cdn.bootcss.com/jquery/3.1.1/jquery.min.js"></script> <script> $.get(‘area_list.json‘, function (res) { // 省份 var provinceList = $.grep(res, function (n) { return n.value.length == 2 }) // 初始化城市列表 var beijingList = $.grep(res,function (n) { return n.parent == 11 }) function addData(id,dataFilter){ var dataList = ‘‘ for(var i = 0; i<dataFilter.length;i++){ dataList+= ‘<option value="‘+dataFilter[i].value+‘">‘+dataFilter[i].name+‘</option>‘ } $("#"+id).append(dataList) } addData("province",provinceList) //添加省份 addData("city",beijingList) // 添加城市 // 省份改变后获取新的城市列表 $("#province").change(function () { var cityId = $(this).val(); var cityList = $.grep(res,function (n) { return n.parent == cityId }) $("#city").empty() addData("city",cityList) // 添加对应城市 }) }, ‘json‘) $("button").click(function () { console.log($("#province").val()); console.log($("#city").val()); }) </script> </body> </html>
标签：prot 对象 oct filter struct html com char grep
原文地址：http://www.cnblogs.com/gyz418/p/7372702.html
