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javascript - Why is my Mongodb aggregation pipeline update …
WebProblem: I need to only update one document in a nested array of subdocuments. My previous query was updating all matching documents which is no good Example Below.So I decided to use aggregation so that I could add a limit stage so that I could only update one item, but I cannot get the update to happen through node and I am not even getting errors. WebMar 31, 2024 · Update: I changed my model to make queries simpler. instead of. events: [{eventName: 'e1', times: 10}, {eventName: 'e2', times: 1}] the model is: events: { e1: 10, e2: … child safety song lyrics
MongoDB Animated 🍩: Updating elements …
WebC# : How can I update mongodb document for adding a new item to array?To Access My Live Chat Page, On Google, Search for "hows tech developer connect"As I pr... WebApr 11, 2024 · You need to find the first and last position of occurrence of X in the array. Note: 1. The array follows 0-based indexing, so you need to return 0-based indices. 2. If X is not present in the array, return “-1 -1”. 3. If X is only present once in the array, the first and last position of its occurrence will be the same. Follow Up: WebMar 13, 2024 · You can get more information about the $[] operator at the MongoDB offical website.. 3. Updating Multiple Array Elements in all Documents based on the Array Filter. … child safety smart watch