Question

我有多个长变量名称。

var easternstateconventionlocation = "someting a";
var easternstateconventiondateandtime = "someting b";
var easternstateconventionsponsor = "someting c";

正如您所见，easternstateconvention很常见。当我使用这些变量时，是否可以使用公共部分+附加部分并组合来创建完整的变量名称？例如：

var common = 'easternstateconvention';
var loc = 'location';
var spo = 'sponsor';
var dat = 'dateandtime'; 
.text('location: '+ common +''+loc+' at '+ common +''+dat);

我的要求是缩短变量名称以备将来使用。

注意：我正在寻找一种解决方案来做到这一点，而无需更改现有的长变量名称。

Answer 1

您可以创建一个包含变量的对象，然后您可以使用Bracket notation从对象中获取数据。

var obj = {
  easternstateconventionlocation: "someting a",
  easternstateconventiondateandtime: "someting b",
  easternstateconventionsponsor: "someting c"
}


var common = 'easternstateconvention';
var loc = 'location';
var spo = 'sponsor';
var dat = 'dateandtime';

console.log('location: ' + obj[common + loc] + ' at ' + obj[common + dat])

Answer 2

var common = 'easternstateconvention';
var loc = 'location';
var spo = 'sponsor';
var dat = 'dateandtime'; 
console.log('location: '+ [common] +''+[loc]+' at '+ [common] +''+[dat]);

Demo

Answer 3

var common = {
    location: "someting a",
    dateandtime: "someting b",
    sponsor: "someting c"
 };

var loc = 'location';
var spo = 'sponsor';
var dat = 'dateandtime'; 
console.log('location: '+ common[loc]+' at '+ common[dat]);

或

var common = {
    location: "someting a",
    dateandtime: "someting b",
    sponsor: "someting c"
 };

console.log('location: '+ common['location']+' at '+ common['dateandtime']);

但你使用CamelStyle。 String或varialbe＆＃39; dateAndTime＆＃39;它可以从＆date; time＆time＆＃39;。

中读取

加入变量名称

3 个答案: