vue json字符串转成数组

可以使用JSON.parse()函数将JSON字符串转换成数组。例如：

var jsonStr = '[{"name":"John","age":30,"city":"New York"},{"name":"Jane","age":25,"city":"Los Angeles"}]';
var arr = JSON.parse(jsonStr);
console.log(arr);

输出结果：
[{"name":"John","age":30,"city":"New York"},{"name":"Jane","age":25,"city":"Los Angeles"}]