[英]parse json object to compare the items in it
我有一个结构如下的 json 对象:
{
"catNames" : ["a1", "a2", "a3", "a4"],
"dogNames" : ["b1", "b2", "b3", "b4"],
"goldfishNames" : ["c1", "c2", "c3", "c4"]
}
我想要做的是解析这个对象并比较一个输入字符串,与"catNames"
, "dogNames"
, "goldfishNames"
,如果两者匹配,比如说catNames
,我想从catNames
数组中打印一个随机元素. 我完全迷失了,我该怎么办?
迭代对象的键,查看该键的值是否包含匹配的名称,如果包含,您可以在随机索引处记录数组中的名称。
const jsonObject ={
"catNames" : ["a1", "a2", "a3", "a4"],
"dogNames" : ["b1", "b2", "b3", "b4"],
"goldfishNames" : ["c1", "c2", "c3", "c4"]
};
const input = 'a1';
Object.keys(jsonObject).forEach(key =>{
const nameArr = jsonObject[key];
if(nameArr.includes(input))
console.log(nameArr[Math.floor(Math.random() * nameArr.length)]);
});
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