我正在与 Javascript 数据结构作斗争。我需要创建一个映射,其中键是字符串,值是两个长整型数组。
例如,类似:
var x = myMap["SomeString"];
var firstLong = x[0][0];
var secondLong = x[0][1];
// do something with first and second long
firstLong = x[1][0];
secondLong = x[1][1];
// do something with first and second long
etc..
如何在 Javascript 中正确实现此目的?
最佳答案
因此,为了使用多维数组,您需要首先“定义”维度,即
var myMap = {};
myMap["SomeString"] = [];
myMap["SomeString"][0] = []; // new dimension
myMap["SomeString"][0][0] = 1; // can be also done with
myMap["SomeString"][0][1] = 2; // myMap["SomeString"][0].push(2);
myMap["SomeString"][1] = []; // new dimension
myMap["SomeString"][1][0] = 3;
myMap["SomeString"][1][1] = 4;
同样可以用文字来完成:
var myMap = {
SomeString: [
[1, 2],
[3, 4]
]
};
console.log(myMap["SomeString"][0][1]); // 2
关于javascript - 带有字符串键的映射,其中值是 Javascript 中的长整对数组?,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/15615032/