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在 JSON 對(duì)象中，如何在不知道鍵的情況下檢索 JSON 對(duì)象中的對(duì)象值？

在 JSON 對(duì)象中，如何在不知道鍵的情況下檢索 JSON 對(duì)象中的對(duì)象值？

猛跑小豬 2022-10-13 19:30:02
在以下 API 響應(yīng)中，我有一個(gè) 對(duì)象time_entries，每個(gè)對(duì)象都有一個(gè) ID 作為鍵。{"count":5,"results":[{"key":"time_entries","id":"1522040735"},{"key":"time_entries","id":"1522040395"},{"key":"time_entries","id":"1517855265"},{"key":"time_entries","id":"1517854385"},{"key":"time_entries","id":"1517853315"}],"time_entries":{"1522040735":{"created_at":"2020-06-22T13:54:54-07:00","updated_at":"2020-06-22T13:54:54-07:00","date_performed":"2020-06-22","time_in_minutes":75,"billable":true,"notes":"","rate_in_cents":25000,"cost_rate_in_cents":null,"currency":"USD","currency_symbol":"$","currency_base_unit":100,"user_can_edit":false,"approved":false,"taxable":false,"is_invoiced":true,"story_id":"569297425","workspace_id":"31689165","user_id":"13403745","active_submission_id":null,"recent_submission_id":null,"id":"1522040735"},"1522040395":{"created_at":"2020-06-22T13:54:42-07:00","updated_at":"2020-06-22T13:54:42-07:00","date_performed":"2020-06-22","time_in_minutes":90,"billable":true,"notes":"","rate_in_cents":25000,"cost_rate_in_cents":null,"currency":"USD","currency_symbol":"$","currency_base_unit":100,"user_can_edit":false,"approved":false,"taxable":false,"is_invoiced":true,"story_id":"569297345","workspace_id":"31689165","user_id":"13403745","active_submission_id":null,"recent_submission_id":null,"id":"1522040395"},"1517855265":{"created_at":"2020-06-19T10:32:50-07:00","updated_at":"2020-06-19T10:32:50-07:00","date_performed":"2020-06-19","time_in_minutes":60,"billable":true,"notes":"","rate_in_cents":25000,"cost_rate_in_cents":null,"currency":"USD","currency_symbol":"$","currency_base_unit":100,"user_can_edit":false,"approved":false,"taxable":false,"is_invoiced":true,"story_id":"568676695","workspace_id":"31689165","user_id":"13403745","active_submission_id":null,"recent_submission_id":null,"id":"1517855265"},"1517854385":{"created_at":"2020-06-19T10:32:12-07:00","updated_at":"2020-06-19T10:32:12-07:00","date_performed":"2020-而且我還需要它采用這種格式，無(wú)論有多少條目——無(wú)論是五個(gè)條目還是二十個(gè)條目。任何提示或建議將不勝感激。
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茅侃侃

TA貢獻(xiàn)1842條經(jīng)驗(yàn) 獲得超21個(gè)贊

我不確定這是否是最優(yōu)雅或最高效的解決方案，但我認(rèn)為這會(huì)產(chǎn)生正確的值：


//copied from the question

const apiResponse = {"count":5,"results":[{"key":"time_entries","id":"1522040735"},{"key":"time_entries","id":"1522040395"},{"key":"time_entries","id":"1517855265"},{"key":"time_entries","id":"1517854385"},{"key":"time_entries","id":"1517853315"}],"time_entries":{"1522040735":{"created_at":"2020-06-22T13:54:54-07:00","updated_at":"2020-06-22T13:54:54-07:00","date_performed":"2020-06-22","time_in_minutes":75,"billable":true,"notes":"","rate_in_cents":25000,"cost_rate_in_cents":null,"currency":"USD","currency_symbol":"$","currency_base_unit":100,"user_can_edit":false,"approved":false,"taxable":false,"is_invoiced":true,"story_id":"569297425","workspace_id":"31689165","user_id":"13403745","active_submission_id":null,"recent_submission_id":null,"id":"1522040735"},"1522040395":{"created_at":"2020-06-22T13:54:42-07:00","updated_at":"2020-06-22T13:54:42-07:00","date_performed":"2020-06-22","time_in_minutes":90,"billable":true,"notes":"","rate_in_cents":25000,"cost_rate_in_cents":null,"currency":"USD","currency_symbol":"$","currency_base_unit":100,"user_can_edit":false,"approved":false,"taxable":false,"is_invoiced":true,"story_id":"569297345","workspace_id":"31689165","user_id":"13403745","active_submission_id":null,"recent_submission_id":null,"id":"1522040395"},"1517855265":{"created_at":"2020-06-19T10:32:50-07:00","updated_at":"2020-06-19T10:32:50-07:00","date_performed":"2020-06-19","time_in_minutes":60,"billable":true,"notes":"","rate_in_cents":25000,"cost_rate_in_cents":null,"currency":"USD","currency_symbol":"$","currency_base_unit":100,"user_can_edit":false,"approved":false,"taxable":false,"is_invoiced":true,"story_id":"568676695","workspace_id":"31689165","user_id":"13403745","active_submission_id":null,"recent_submission_id":null,"id":"1517855265"},"1517854385":{"created_at":"2020-06-19T10:32:12-07:00","updated_at":"2020-06-19T10:32:12-07:00","date_performed":"2020-06-19","time_in_minutes":120,"billable":true,"notes":"","rate_in_cents":25000,"cost_rate_in_cents":null,"currency":"USD","currency_symbol":"$","currency_base_unit":100,"user_can_edit":false,"approved":false,"taxable":false,"is_invoiced":true,"story_id":"568676755","workspace_id":"31689165","user_id":"13403745","active_submission_id":null,"recent_submission_id":null,"id":"1517854385"},"1517853315":{"created_at":"2020-06-19T10:31:40-07:00","updated_at":"2020-06-19T10:31:40-07:00","date_performed":"2020-06-19","time_in_minutes":180,"billable":true,"notes":"","rate_in_cents":25000,"cost_rate_in_cents":null,"currency":"USD","currency_symbol":"$","currency_base_unit":100,"user_can_edit":false,"approved":false,"taxable":false,"is_invoiced":true,"story_id":"568676765","workspace_id":"31689165","user_id":"13403745","active_submission_id":null,"recent_submission_id":null,"id":"1517853315"}},"meta":{"count":5,"page_count":1,"page_number":1,"page_size":20},"stories":{"569297425":{"title":"task5","description":"task5desc","updated_at":"2020-06-22T13:56:41-07:00","assignment_timestamped_at":"2020-06-22T13:56:41-07:00","created_at":"2020-06-22T13:54:08-07:00","due_date":null,"start_date":null,"story_type":"task","state":"started","position":99960000,"archived":false,"deleted_at":null,"sub_story_count":0,"percentage_complete":0,"priority":"normal","has_proofing_access":false,"ancestor_ids":[],"subtree_depth":0,"ancestry_depth":0,"time_trackable":true,"time_estimate_in_minutes":null,"logged_billable_time_in_minutes":75,"logged_nonbillable_time_in_minutes":0,"sub_stories_time_estimate_in_minutes":null,"sub_stories_billable_time_in_minutes":null,"weight":null,"budget_estimate_in_cents":null,"budget_used_in_cents":31250,"uninvoiced_balance_in_cents":0,"invoiced_balance_in_cents":31250,"sub_stories_budget_estimate_in_cents":null,"sub_stories_budget_used_in_cents":null,"fixed_fee":false,"billable":true,"workspace_id":"31689165","creator_id":"13403745","parent_id":null,"root_id":null,"id":"569297425"},"569297345":{"title":"task4","description":"task4desc","updated_at":"2020-06-22T13:56:41-07:00","assignment_timestamped_at":"2020-06-22T13:56:41-07:00","created_at":"2020-06-22T13:53:55-07:00","due_date":null,"start_date":null,"story_type":"task","state":"started","position":99970000,"archived":false,"deleted_at":null,"sub_story_count":0,"percentage_complete":0,"priority":"normal","has_proofing_access":false,"ancestor_ids":[],"subtree_depth":0,"ancestry_depth":0,"time_trackable":true,"time_estimate_in_minutes":null,"logged_billable_time_in_minutes":90,"logged_nonbillable_time_in_minutes":0,"sub_stories_time_estimate_in_minutes":null,"sub_stories_billable_time_in_minutes":null,"weight":null,"budget_estimate_in_cents":null,"budget_used_in_cents":37500,"uninvoiced_balance_in_cents":0,"invoiced_balance_in_cents":37500,"sub_stories_budget_estimate_in_cents":null,"sub_stories_budget_used_in_cents":null,"fixed_fee":false,"billable":true,"workspace_id":"31689165","creator_id":"13403745","parent_id":null,"root_id":null,"id":"569297345"},"568676695":{"title":"task1","description":"desc1","updated_at":"2020-06-22T13:56:40-07:00","assignment_timestamped_at":"2020-06-22T13:56:40-07:00","created_at":"2020-06-19T10:26:09-07:00","due_date":null,"start_date":"2020-06-19","story_type":"task","state":"completed","position":100000000,"archived":false,"deleted_at":null,"sub_story_count":0,"percentage_complete":100,"priority":"normal","has_proofing_access":false,"ancestor_ids":[],"subtree_depth":0,"ancestry_depth":0,"time_trackable":true,"time_estimate_in_minutes":120,"logged_billable_time_in_minutes":60,"logged_nonbillable_time_in_minutes":0,"sub_stories_time_estimate_in_minutes":null,"sub_stories_billable_time_in_minutes":null,"weight":null,"budget_estimate_in_cents":10000,"budget_used_in_cents":30000,"uninvoiced_balance_in_cents":0,"invoiced_balance_in_cents":30000,"sub_stories_budget_estimate_in_cents":null,"sub_stories_budget_used_in_cents":null,"fixed_fee":false,"billable":true,"workspace_id":"31689165","creator_id":"13403745","parent_id":null,"root_id":null,"id":"568676695"},"568676755":{"title":"task2","description":"desc2","updated_at":"2020-06-22T13:56:40-07:00","assignment_timestamped_at":"2020-06-22T13:56:40-07:00","created_at":"2020-06-19T10:26:27-07:00","due_date":null,"start_date":"2020-06-19","story_type":"task","state":"completed","position":99990000,"archived":false,"deleted_at":null,"sub_story_count":0,"percentage_complete":100,"priority":"normal","has_proofing_access":false,"ancestor_ids":[],"subtree_depth":0,"ancestry_depth":0,"time_trackable":true,"time_estimate_in_minutes":120,"logged_billable_time_in_minutes":120,"logged_nonbillable_time_in_minutes":0,"sub_stories_time_estimate_in_minutes":null,"sub_stories_billable_time_in_minutes":null,"weight":null,"budget_estimate_in_cents":20000,"budget_used_in_cents":50000,"uninvoiced_balance_in_cents":0,"invoiced_balance_in_cents":50000,"sub_stories_budget_estimate_in_cents":null,"sub_stories_budget_used_in_cents":null,"fixed_fee":false,"billable":true,"workspace_id":"31689165","creator_id":"13403745","parent_id":null,"root_id":null,"id":"568676755"},"568676765":{"title":"task3","description":"desc3","updated_at":"2020-06-22T13:56:40-07:00","assignment_timestamped_at":"2020-06-22T13:56:40-07:00","created_at":"2020-06-19T10:26:36-07:00","due_date":null,"start_date":"2020-06-19","story_type":"task","state":"completed","position":99980000,"archived":false,"deleted_at":null,"sub_story_count":0,"percentage_complete":100,"priority":"normal","has_proofing_access":false,"ancestor_ids":[],"subtree_depth":0,"ancestry_depth":0,"time_trackable":true,"time_estimate_in_minutes":180,"logged_billable_time_in_minutes":180,"logged_nonbillable_time_in_minutes":0,"sub_stories_time_estimate_in_minutes":null,"sub_stories_billable_time_in_minutes":null,"weight":null,"budget_estimate_in_cents":30000,"budget_used_in_cents":75000,"uninvoiced_balance_in_cents":0,"invoiced_balance_in_cents":75000,"sub_stories_budget_estimate_in_cents":null,"sub_stories_budget_used_in_cents":null,"fixed_fee":false,"billable":true,"workspace_id":"31689165","creator_id":"13403745","parent_id":null,"root_id":null,"id":"568676765"}}}


const timeEntries = apiResponse['time_entries'];


const minuteTimes = Object.values(timeEntries).map(entry => entry['time_in_minutes']);


//prints [180, 120, 60, 90, 75]

console.log(minuteTimes);

如果您需要按 id 過(guò)濾 time_entries（例如，如果您想查看一個(gè)子集），那么您可以合并它


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幕布斯6054654

TA貢獻(xiàn)1876條經(jīng)驗(yàn) 獲得超7個(gè)贊

讓我們定義response保存 API 返回，并且what是您希望從每個(gè)time_entries對(duì)象中提取的屬性。


function extract(response, what){

    const parsed = (typeof(response)==='object')? response: JSON.parse(response); 

    return (Object

            .keys(parsed.time_entries)  // finds the keys

            .sort((a,b)=>(+b-a))        // sorts the keys in reverse order

            .map((k)=>(parsed.time_entries[k][what]))  // finds the data

            .filter((v)=>(v!==undefined)) // removes undefined data 

            .join(",")  // changes to CSV [75,90,60,...] -> '75,90,60,...'

            );

}

測(cè)試node.js


extract(response, 'time_in_minutes');

'75,90,60,120,180'


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繁花如伊

TA貢獻(xiàn)2012條經(jīng)驗(yàn) 獲得超12個(gè)贊

嘗試，

Object.keys() method on the object.


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慕神8447489

TA貢獻(xiàn)1780條經(jīng)驗(yàn) 獲得超1個(gè)贊

您可以使用Object.values來(lái)獲取每個(gè)鍵的值并map針對(duì)特定結(jié)果進(jìn)行迭代。

var resp = {"count":5,"results":[{"key":"time_entries","id":"1522040735"},{"key":"time_entries","id":"1522040395"},{"key":"time_entries","id":"1517855265"},{"key":"time_entries","id":"1517854385"},{"key":"time_entries","id":"1517853315"}],"time_entries":{"1522040735":{"created_at":"2020-06-22T13:54:54-07:00","updated_at":"2020-06-22T13:54:54-07:00","date_performed":"2020-06-22","time_in_minutes":75,"billable":true,"notes":"","rate_in_cents":25000,"cost_rate_in_cents":null,"currency":"USD","currency_symbol":"$","currency_base_unit":100,"user_can_edit":false,"approved":false,"taxable":false,"is_invoiced":true,"story_id":"569297425","workspace_id":"31689165","user_id":"13403745","active_submission_id":null,"recent_submission_id":null,"id":"1522040735"},"1522040395":{"created_at":"2020-06-22T13:54:42-07:00","updated_at":"2020-06-22T13:54:42-07:00","date_performed":"2020-06-22","time_in_minutes":90,"billable":true,"notes":"","rate_in_cents":25000,"cost_rate_in_cents":null,"currency":"USD","currency_symbol":"$","currency_base_unit":100,"user_can_edit":false,"approved":false,"taxable":false,"is_invoiced":true,"story_id":"569297345","workspace_id":"31689165","user_id":"13403745","active_submission_id":null,"recent_submission_id":null,"id":"1522040395"},"1517855265":{"created_at":"2020-06-19T10:32:50-07:00","updated_at":"2020-06-19T10:32:50-07:00","date_performed":"2020-06-19","time_in_minutes":60,"billable":true,"notes":"","rate_in_cents":25000,"cost_rate_in_cents":null,"currency":"USD","currency_symbol":"$","currency_base_unit":100,"user_can_edit":false,"approved":false,"taxable":false,"is_invoiced":true,"story_id":"568676695","workspace_id":"31689165","user_id":"13403745","active_submission_id":null,"recent_submission_id":null,"id":"1517855265"},"1517854385":{"created_at":"2020-06-19T10:32:12-07:00","updated_at":"2020-06-19T10:32:12-07:00","date_performed":"2020-06-19","time_in_minutes":120,"billable":true,"notes":"","rate_in_cents":25000,"cost_rate_in_cents":null,"currency":"USD","currency_symbol":"$","currency_base_unit":100,"user_can_edit":false,"approved":false,"taxable":false,"is_invoiced":true,"story_id":"568676755","workspace_id":"31689165","user_id":"13403745","active_submission_id":null,"recent_submission_id":null,"id":"1517854385"},"1517853315":{"created_at":"2020-06-19T10:31:40-07:00","updated_at":"2020-06-19T10:31:40-07:00","date_performed":"2020-06-19","time_in_minutes":180,"billable":true,"notes":"","rate_in_cents":25000,"cost_rate_in_cents":null,"currency":"USD","currency_symbol":"$","currency_base_unit":100,"user_can_edit":false,"approved":false,"taxable":false,"is_invoiced":true,"story_id":"568676765","workspace_id":"31689165","user_id":"13403745","active_submission_id":null,"recent_submission_id":null,"id":"1517853315"}},"meta":{"count":5,"page_count":1,"page_number":1,"page_size":20},"stories":{"569297425":{"title":"task5","description":"task5desc","updated_at":"2020-06-22T13:56:41-07:00","assignment_timestamped_at":"2020-06-22T13:56:41-07:00","created_at":"2020-06-22T13:54:08-07:00","due_date":null,"start_date":null,"story_type":"task","state":"started","position":99960000,"archived":false,"deleted_at":null,"sub_story_count":0,"percentage_complete":0,"priority":"normal","has_proofing_access":false,"ancestor_ids":[],"subtree_depth":0,"ancestry_depth":0,"time_trackable":true,"time_estimate_in_minutes":null,"logged_billable_time_in_minutes":75,"logged_nonbillable_time_in_minutes":0,"sub_stories_time_estimate_in_minutes":null,"sub_stories_billable_time_in_minutes":null,"weight":null,"budget_estimate_in_cents":null,"budget_used_in_cents":31250,"uninvoiced_balance_in_cents":0,"invoiced_balance_in_cents":31250,"sub_stories_budget_estimate_in_cents":null,"sub_stories_budget_used_in_cents":null,"fixed_fee":false,"billable":true,"workspace_id":"31689165","creator_id":"13403745","parent_id":null,"root_id":null,"id":"569297425"},"569297345":{"title":"task4","description":"task4desc","updated_at":"2020-06-22T13:56:41-07:00","assignment_timestamped_at":"2020-06-22T13:56:41-07:00","created_at":"2020-06-22T13:53:55-07:00","due_date":null,"start_date":null,"story_type":"task","state":"started","position":99970000,"archived":false,"deleted_at":null,"sub_story_count":0,"percentage_complete":0,"priority":"normal","has_proofing_access":false,"ancestor_ids":[],"subtree_depth":0,"ancestry_depth":0,"time_trackable":true,"time_estimate_in_minutes":null,"logged_billable_time_in_minutes":90,"logged_nonbillable_time_in_minutes":0,"sub_stories_time_estimate_in_minutes":null,"sub_stories_billable_time_in_minutes":null,"weight":null,"budget_estimate_in_cents":null,"budget_used_in_cents":37500,"uninvoiced_balance_in_cents":0,"invoiced_balance_in_cents":37500,"sub_stories_budget_estimate_in_cents":null,"sub_stories_budget_used_in_cents":null,"fixed_fee":false,"billable":true,"workspace_id":"31689165","creator_id":"13403745","parent_id":null,"root_id":null,"id":"569297345"},"568676695":{"title":"task1","description":"desc1","updated_at":"2020-06-22T13:56:40-07:00","assignment_timestamped_at":"2020-06-22T13:56:40-07:00","created_at":"2020-06-19T10:26:09-07:00","due_date":null,"start_date":"2020-06-19","story_type":"task","state":"completed","position":100000000,"archived":false,"deleted_at":null,"sub_story_count":0,"percentage_complete":100,"priority":"normal","has_proofing_access":false,"ancestor_ids":[],"subtree_depth":0,"ancestry_depth":0,"time_trackable":true,"time_estimate_in_minutes":120,"logged_billable_time_in_minutes":60,"logged_nonbillable_time_in_minutes":0,"sub_stories_time_estimate_in_minutes":null,"sub_stories_billable_time_in_minutes":null,"weight":null,"budget_estimate_in_cents":10000,"budget_used_in_cents":30000,"uninvoiced_balance_in_cents":0,"invoiced_balance_in_cents":30000,"sub_stories_budget_estimate_in_cents":null,"sub_stories_budget_used_in_cents":null,"fixed_fee":false,"billable":true,"workspace_id":"31689165","creator_id":"13403745","parent_id":null,"root_id":null,"id":"568676695"},"568676755":{"title":"task2","description":"desc2","updated_at":"2020-06-22T13:56:40-07:00","assignment_timestamped_at":"2020-06-22T13:56:40-07:00","created_at":"2020-06-19T10:26:27-07:00","due_date":null,"start_date":"2020-06-19","story_type":"task","state":"completed","position":99990000,"archived":false,"deleted_at":null,"sub_story_count":0,"percentage_complete":100,"priority":"normal","has_proofing_access":false,"ancestor_ids":[],"subtree_depth":0,"ancestry_depth":0,"time_trackable":true,"time_estimate_in_minutes":120,"logged_billable_time_in_minutes":120,"logged_nonbillable_time_in_minutes":0,"sub_stories_time_estimate_in_minutes":null,"sub_stories_billable_time_in_minutes":null,"weight":null,"budget_estimate_in_cents":20000,"budget_used_in_cents":50000,"uninvoiced_balance_in_cents":0,"invoiced_balance_in_cents":50000,"sub_stories_budget_estimate_in_cents":null,"sub_stories_budget_used_in_cents":null,"fixed_fee":false,"billable":true,"workspace_id":"31689165","creator_id":"13403745","parent_id":null,"root_id":null,"id":"568676755"},"568676765":{"title":"task3","description":"desc3","updated_at":"2020-06-22T13:56:40-07:00","assignment_timestamped_at":"2020-06-22T13:56:40-07:00","created_at":"2020-06-19T10:26:36-07:00","due_date":null,"start_date":"2020-06-19","story_type":"task","state":"completed","position":99980000,"archived":false,"deleted_at":null,"sub_story_count":0,"percentage_complete":100,"priority":"normal","has_proofing_access":false,"ancestor_ids":[],"subtree_depth":0,"ancestry_depth":0,"time_trackable":true,"time_estimate_in_minutes":180,"logged_billable_time_in_minutes":180,"logged_nonbillable_time_in_minutes":0,"sub_stories_time_estimate_in_minutes":null,"sub_stories_billable_time_in_minutes":null,"weight":null,"budget_estimate_in_cents":30000,"budget_used_in_cents":75000,"uninvoiced_balance_in_cents":0,"invoiced_balance_in_cents":75000,"sub_stories_budget_estimate_in_cents":null,"sub_stories_budget_used_in_cents":null,"fixed_fee":false,"billable":true,"workspace_id":"31689165","creator_id":"13403745","parent_id":null,"root_id":null,"id":"568676765"}}}


var output = Object.values(resp.time_entries).map(val => val.time_in_minutes).join(',');


console.log(output);



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反對(duì) 回復(fù) 2022-10-13
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