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"]
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
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