[英]How to assign mutiple keys via the value of variables for an javascript object literal
我想知道是否可能有一個像多維數組的對象? 我想要的是這樣的:
lines[first][first first]= "value key key"
lines = {};
key = "first";
key_key = "first first";
lines[key] = "value key ";
lines[key][key_key]= "value key key "
console.log(lines);
輸出:無法將未定義轉換為對象
lines[key]
是一個字符串值。 它應該是一個對象。 像這樣:
lines = {};
key = "first";
key_key = "first first";
lines[key] = {};
lines[key][key_key]= "value key key ";
//=> lines.first['first first'] now is 'value key key'
要么
lines = {};
key = "first";
key_key = "first first";
lines[key] = new String("value key ");
lines[key][key_key]= "value key key ";
//=> lines.first['first first'] still is 'value key key',
// but now it's a custom property of a String Object
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