[英]Cannot access property with space in name
I have the following object:我有以下对象:
translations = {
'nl': {
'Dashboard': [
{
"Today's turnover": "Omzet van vandaag",
"Get an overview directly from your receipts on location.": "Bekijk een overzicht rechtstreeks vanuit uw inkomsten op locatie.",
"Choose your POS provider": "Kies uw POS provider"
}],
'Products': [],
'Order': []
}
}
And I'm trying to access the Today's turnover
property of the Dashboard
proprty inside nl
, which, according to the question and answers here can be accessed like object['object property']
However when I try to access it, it comes as undefined for some reason:我正在尝试访问
nl
Dashboard
属性的Today's turnover
属性,根据这里的问题和答案,可以像object['object property']
访问它,但是当我尝试访问它时,它是未定义的出于某种原因:
Why is this not working?为什么这不起作用?
Dashboard is an array, and your object is the first element in this array. Dashboard 是一个数组,您的对象是该数组中的第一个元素。 Also you don't have to escape
'
if you are in a ""
string!此外,如果您在
""
字符串中,则不必转义'
!
So use this:所以使用这个:
translations['nl']['Dashboard'][0]["Today's turnover"]
Check below code its working for object['object property']
, may be you are using some wrong key name检查下面的代码是否适用于
object['object property']
,可能是您使用了一些错误的键名
translations = { 'nl': { 'Dashboard': [{ "Today's turnover": "Omzet van vandaag", "Get an overview directly from your receipts on location.": "Bekijk een overzicht rechtstreeks vanuit uw inkomsten op locatie.", "Choose your POS provider": "Kies uw POS provider" }], 'Products': [], 'Order': [] } } document.getElementsByTagName("div")[0].innerHTML = translations['nl']['Dashboard'][0]['Today\\'s turnover'];
<div></div>
Why is this not working?
为什么这不起作用?
Because you are not using the exact name of the property, but for some reason decided to add an extra backslash …因为您没有使用属性的确切名称,但出于某种原因决定添加一个额外的反斜杠……
Dashboard
is a Array
, not Object
. Dashboard
是一个Array
,而不是Object
。 To access it, you must:要访问它,您必须:
translations['n1']['Dashboard'][0]['Today\'s turnover']
Or:或者:
translations.n1.Dashboard[0]['Today\'s turnover']
Dashboard
is an array. Dashboard
是一个数组。 So use Dashboard[0]
所以使用
Dashboard[0]
translations = {
'nl': {
'Dashboard': [
{
"Today's turnover": "Omzet van vandaag",
"Get an overview directly from your receipts on location.": "Bekijk een overzicht rechtstreeks vanuit uw inkomsten op locatie.",
"Choose your POS provider": "Kies uw POS provider"
}],
'Products': [],
'Order': []
}
}
console.log(translations.nl.Dashboard[0]['Today\'s turnover']);
Note注意
[ ]
is use to retrieve Today's turnover
key instead of dot(.)
notation. [ ]
用于检索Today's turnover
密钥而不是dot(.)
符号。 You can check this Link for more information您可以查看此链接以获取更多信息
A bit of theory to back other good answers here.这里有一些理论来支持其他好的答案。
Properties of JavaScript objects can also be accessed or set using a bracket notation (for more details see property accessors ). JavaScript 对象的属性也可以使用括号表示法访问或设置(有关更多详细信息,请参阅属性访问器)。 Objects are sometimes called associative arrays, since each property is associated with a string value that can be used to access it.
对象有时称为关联数组,因为每个属性都与可用于访问它的字符串值相关联。 So, for example, you could access the properties of the myCar object as follows:
因此,例如,您可以按如下方式访问 myCar 对象的属性:
myCar['make'] = 'Ford';
myCar['model'] = 'Mustang';
myCar['year'] = 1969;
For more, read on at Working with JS Objects .有关更多信息,请继续阅读使用 JS 对象。
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