node.js - 在mongodb中删除数组中的项目[重复](Delete an item in array in mongodb [duplicate])

Question

This question already has answers here) : 这个问题已经在这里有了答案) ：)

MongoDB, remove object from array (5 answers) MongoDB，从数组中删除对象 （5个答案）)

Closed 4 hours ago . 4小时前关闭。)

i have a document as

(我有一个文件)

{ "_id" : ObjectId("5de2a0a2336a4c5adc3fc25c"), "image" : { "otherImages" : [ { "imageUrl" : "HL2370207N_1575195338958.jpg", "status" : true }, { "imageUrl" : "HL2370207N_1575195373805.jpg", "status" : true }, { "imageUrl" : "HL2370207N_1575195382992.jpg", "status" : true } ] } }

({“ _id”：ObjectId（“ 5de2a0a2336a4c5adc3fc25c”），“ image”：{“ otherImages”：[{“ imageUrl”：“ HL2370207N_1575195338958.jpg”，“ status”：true}，{“ imageUrl”：“ HL2370207N_1575195373805.jpg” ，“ status”：true}，{“ imageUrl”：“ HL2370207N_1575195382992.jpg”，“ status”：true}]}})

I have to delete an item of an otherImages array whose imageUrl is "HL2370207N_1575195382992.jpg" $pull cannot applied since it is under node image which is not an array.

(我必须删除其imageUrl为“ HL2370207N_1575195382992.jpg”的otherImages数组的一项，因为它位于不是数组的节点图像下，所以无法应用$ pull。)

please give any guidance .

(请给我任何指导。)

i am new to the mongoDB

(我是mongoDB的新手)

  ask by Bharat Bhurtel translate from so

Answer 1

I think you can specify the value you want to delete.

(我认为您可以指定要删除的值。)

Like so:

(像这样：)

{ $pull: { <field1>: <value|condition> } }

Source & examples: https://docs.mongodb.com/manual/reference/operator/update/pull/

(来源和示例： https : //docs.mongodb.com/manual/reference/operator/update/pull/)