javascript 将字符串转换为多维数组
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Convert string to a multidimensional array
提问by Fred
I have a string
我有一个字符串
var myString = "['Item', 'Count'],['iPad',2],['Android',1]";
I need to convert it into an array where:
我需要将它转换成一个数组，其中：
myArray[0][0] = 'Item';
myArray[0][1] = 'Count';
myArray[1][0] = 'iPad';
myArray[1][1] = 2;
etc...
等等...
The string can vary in length but will always be in the format above. I have tried splitting and splicing and any other "ing" I can think of but I can't get it.
字符串的长度可以不同，但始终采用上述格式。我尝试过拆分和拼接以及我能想到的任何其他“ing”，但我无法理解。
Can anyone help please?
有人可以帮忙吗？
回答by I Hate Lazy
If the string is certain to be secure, the simplest would be to concatenat [and ]to the beginning and end, and then evalit.
如果字符串是一定是安全的，最简单的将是concatenat[并]以开始和结束，然后eval它。
var arr = eval("[" + myString + "]");
If you wanted greater safety, use double quotes for your strings, and use JSON.parse()in the same way.
如果您想要更高的安全性，请为您的字符串使用双引号，并JSON.parse()以相同的方式使用。
var myString = '["Item", "Count"],["iPad",2],["Android",1]';
var arr = JSON.parse("[" + myString + "]");
This will limit you to supported JSON data types, but given your example string, it'll work fine.
这会将您限制为支持的 JSON 数据类型，但鉴于您的示例字符串，它会正常工作。
回答by Royi Namir
try this :
试试这个 ：
JSON.parse("[['Item', 'Count'],['iPad',2],['Android',1]]".replace(/\'/g,"\""))
回答by bocapio
I tried to use eval, but in my case it doens't work... My need is convert a string into a array of objects. This is my string (a ajax request result):
我尝试使用 eval，但在我的情况下它不起作用......我需要将字符串转换为对象数组。这是我的字符串（ajax 请求结果）：
{'printjob':{'bill_id':7998,'product_ids':[23703,23704,23705]}}
when I try:
当我尝试：
x = "{'printjob':{'bill_id':7998,'product_ids':[23703,23704,23705]}}";
eval(x);
I receive a "Unexpected token :" error.
我收到“意外令牌：”错误。
My solution was:
我的解决方案是：
x = "{'printjob':{'bill_id':7998,'product_ids':[23703,23704,23705]}}";
x = "temp = " + x + "; return temp;"
tempFunction = new Function (x);
finalArray = tempFunction();
now a have the object finalArray!
现在有对象 finalArray！
I hope to help
我希望有所帮助
回答by Yogesh Prajapati
write your code like
像这样写你的代码
var myString = "[['Item', 'Count'],['iPad',2],['Android',1]]";
and just
并且只是
var arr = eval(myString);
