Question

我在这里做错了什么？我的数组是空的。

var infoarray = [{"address":"07288 Albertha Station","city":"Littelside","created_at":"2011-05-25T19:24:51Z","id":1,"name":"Mr. Emmitt Emmerich","state":"Missouri","updated_at":"2011-05-25T19:24:51Z","zip":"75475-9938"},{MORE INFO}]



 // Populates myarray from infoarray ruby object
      var myarray = new Array();
  $(document).ready(function(){

  $.each(infoarray,function(key,value){
    myarray.push(value['city'])
   });
  });
  console.log(myarray);

Answer 1

我不认为

InfoArray = var hotelinfo = [{"address":"07288 Albertha Station","city":"Littelside","created_at":"2011-05-25T19:24:51Z","id":1,"name":"Mr. Emmitt Emmerich","state":"Missouri","updated_at":"2011-05-25T19:24:51Z","zip":"75475-9938"},{MORE INFO}]

是有效的JavaScript。你必须拆分它：

var hotelinfo;
InfoArray = hotelinfo = [{"address":"07288 Albertha Station","city":"Littelside","created_at":"2011-05-25T19:24:51Z","id":1,"name":"Mr. Emmitt Emmerich","state":"Missouri","updated_at":"2011-05-25T19:24:51Z","zip":"75475-9938"},{MORE INFO}]

Answer 2

javascript区分大小写，因此InfoArray和infoarray是不同的变量。

这有用吗？：

var hotelinfo = [{"address":"07288 Albertha Station","city":"Littelside","created_at":"2011-05-25T19:24:51Z","id":1,"name":"Mr. Emmitt Emmerich","state":"Missouri","updated_at":"2011-05-25T19:24:51Z","zip":"75475-9938"},{MORE INFO}]

 // Populates myarray from infoarray ruby object
      var myarray = new Array();
  $(document).ready(function(){

  $.each(hotelinfo,function(key,value){
    myarray.push(value['city'])
   });
  });
  console.log(myarray);

Answer 3

Javascript区分大小写，请使用

$.each(InfoArray,function(key,value){

即。 InforArray与inforarray不同。这一行

InfoArray = var hotelinfo =

应该是

InfoArray = hotelinfo =

Answer 4

在表达式中间声明变量是无效的。 var关键字必须位于一行的开头。在一行中声明多个变量是完全有效的，但var关键字必须是该行的第一个。

Javascript推送方法

4 个答案: