Answers for "remove element from array mongoose"

javascript remove element from array

var colors = ["red","blue","car","green"];
var carIndex = colors.indexOf("car");//get  "car" index
//remove car from the colors array
colors.splice(carIndex, 1); // colors = ["red","blue","green"]

mongoose remove document from array

//db.collection.findOneAndUpdate( filter, update, options )
//{ $pull: { <field1>: <value|condition>} }

List.findOneAndUpdate({ name: listName }, { $pull: { <field1>: <value|condition> } }, function(err, foundList) {
    if (!err) {
         //your code
     }
}); //Here List is my collection name

//By Reacto Kalyan

remove element from array lodash

var arr = [1, 2, 3, 3, 4, 5];
_.remove(arr, function(e) {
    return e === 3;
});
console.log(arr);

mongoose remove element from array

db.survey.update( // select your doc in moongo
    { }, // your query, usually match by _id
    { $pull: { results: { $elemMatch: { score: 8 , item: "B" } } } }, // item(s) to match from array you want to pull/remove
    { multi: true } // set this to true if you want to remove multiple elements.
)

mongoose remove document from array

Favorite.updateOne( {cn: req.params.name}, { $pullAll: {uid: [req.params.deleteUid] } } )

mongoose delete object from array

doc.subdocs.push({ _id: 4815162342 }) // added
doc.subdocs.pull({ _id: 4815162342 }) // removed