如何解决根据 Javascript 中的匹配项查找键值
我正在尝试返回 urns 键匹配的 uuid。
“骨灰盒”:[ “whatsapp:27820111111” ],
应该返回什么 d7b9f88c-b359-4d69-926d-536c0d2892e0 因为它有那个电话号码匹配。如何以编程方式完成此操作。
这是两个字典。
{
"next": "https://random.com=","prevIoUs": null,"results": [
{
"uuid": "g2ws8dh5-b359-4d69-926d-536c0d2892e0","name": "James","language": "eng","urns": [
"whatsapp:27333333333"
],"groups": [
{
"uuid": "57fs8430-3c78-42b7-876c-c385e36c1dba","name": "Postbirth WhatsApp"
}
],"fields": {
"whatsapp_consent": null,"webhook_failure_count": null,},"blocked": false,"stopped": false,"created_on": "2020-12-01T07:50:58.736502Z","modified_on": "2020-12-01T08:36:34.980359Z"
},{
"uuid": "d7b9f88c-b359-4d69-926d-536c0d2892e0","name": "Jane","urns": [
"whatsapp:27820111111"
],"groups": [
{
"uuid": "e35f2e39-3c78-42b7-876c-c385e36c1dba","name": "Prebirth WhatsApp"
}
],"modified_on": "2020-12-01T08:36:34.980359Z"
}
]
}
我可以循环并找到 urn,但我不确定如何退后一步以获取 uuid。
解决方法
将结果数组和 urn 字符串传递给该函数。如果找到则返回 uuid,否则返回 null。
function getIdFromUrn(results,urn) {
for (let i = 0; i < results.length; i++) {
const result = results[i];
if (result.urns.includes(urn)) {
return result.uuid; // urn found
}
}
return null; // not found
}
console.log(getIdFromUrn(results,'whatsapp:27820111111'));
,
当您可以使用 find(...)
匹配某个值时,您不需要循环。
查看下面的演示
var data = [{
"uuid": "g2ws8dh5-b359-4d69-926d-536c0d2892e0","name": "James","language": "eng","urns": [
"whatsapp:27333333333"
],"groups": [{
"uuid": "57fs8430-3c78-42b7-876c-c385e36c1dba","name": "Postbirth WhatsApp"
}],"fields": {
"whatsapp_consent": null,"webhook_failure_count": null,},"blocked": false,"stopped": false,"created_on": "2020-12-01T07:50:58.736502Z","modified_on": "2020-12-01T08:36:34.980359Z"
},{
"uuid": "d7b9f88c-b359-4d69-926d-536c0d2892e0","name": "Jane","urns": [
"whatsapp:27820111111"
],"groups": [{
"uuid": "e35f2e39-3c78-42b7-876c-c385e36c1dba","name": "Prebirth WhatsApp"
}],"modified_on": "2020-12-01T08:36:34.980359Z"
}
];
const lookingFor = "whatsapp:27820111111";
const foundIt = data.find(el => {
return (el.urns.indexOf(lookingFor) !== -1);
});
console.log(foundIt.uuid);
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