Javascript 按键获取Javascript对象值
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Get Javascript object value by key
提问by John Cooper
var Array = [];
{'DateOfBirth' : '06/11/1978',
'Phone' : '770-786',
'Email' : '[email protected]' ,
'Ethnicity' : 'Declined' ,
'Race' : 'OtherRace' , }
I need to access the 'Race' here.. how can i do it... Its an array which holds this data...
我需要在这里访问“比赛”……我该怎么做……它是一个保存这些数据的数组……
回答by minichate
Thats not an array, its an object. You want to do something like:
那不是一个数组，它是一个对象。你想做这样的事情：
var myObject = {
'DateOfBirth' : '06/11/1978',
'Phone' : '770-786',
'Email' : '[email protected]' ,
'Ethnicity' : 'Declined' ,
'Race' : 'OtherRace'
};
// To get the value:
var race = myObject.Race;
If the Objects are inside an array var ArrayValues = [{object}, {object}, ...];then regular array accessors will work:
如果对象在数组内，var ArrayValues = [{object}, {object}, ...];则常规数组访问器将起作用：
var raceName = ArrayValues[0].Race;
var raceName = ArrayValues[0].Race;
Or, if you want to loop over the values:
或者，如果您想遍历这些值：
for (var i = 0; i < ArrayValues.length; i++) {
var raceName = ArrayValues[i].Race;
}
Good documentation for arrays can be found at the Mozilla Developer Network
可以在Mozilla 开发人员网络上找到有关数组的良好文档
回答by pimvdb
A few things here.
这里有几件事。
You do not use Array, moreover, Arrayis actually what you can call when creating an Array, which you overwrite.
Array此外，您不使用，Array实际上是您在创建 时可以调用的Array，您可以覆盖它。
Second, you have an object({...}), but you do not assign it to something. Do you perhaps want to store it in a variable? (var obj = {...})?
其次，您有一个object( {...})，但您没有将它分配给某个东西。您可能想将其存储在变量中吗？( var obj = {...})?
Thirdly, the last ,should not be there since there aren't any more elements.
第三，最后一个,不应该在那里，因为没有更多的元素。
If you have stored it in a variable, you can access it like obj.Race.
如果您已将其存储在变量中，则可以像obj.Race.
回答by Jules
var myObject = {
'DateOfBirth' : '06/11/1978',
'Phone' : '770-786',
'Email' : '[email protected]' ,
'Ethnicity' : 'Declined' ,
'Race' : 'OtherRace'
};
// To get the value:
var race = myObject.Race;
//or
var race = myArray[index].Race;
