unable to update the array using pull in node.js

Question

I wanted to delete 'user' entry from 'roleAssigned' array In the code:

Contact.update({ firstName:'Abhishek'},{$pull: { roleAssigned:'user'}});

This is what the Contact mongoDB model looks like:

[{
    roleAssigned: ['user', 'admin'],
    _id: 5b9b8ef904bc042c8f94f1fe,
    firstName: 'abhishek',
    lastName: 'soni',
    date: 2018-09-14T10:35:37.922Z,
    __v: 0
}]

export const contactschema = new schema({ firstName: { type: String, required: 'enter your first name ' }, lastName: { type: String, required: 'enter your last name ' }, roleAssigned: { type: Array, default: [] }, email: { type: String }}) — Abhishek Soni
– Abhishek Soni, Commented Sep 15, 2018 at 16:40
"Abhishek" and "abhishek" both are different. Either use small a or use $regex in your above query. Something like this Contact.update({ firstName:{ $regex: 'Abhishek', $options: "i" }},{ $pull: { roleAssigned: 'user' }}) — Ashh
– Ashh, Commented Sep 15, 2018 at 16:46
i did the change but I am getting this error msg errmsg: 'Cannot apply $pull to a non-array value' — Abhishek Soni
– Abhishek Soni, Commented Sep 15, 2018 at 17:23

Grant Miller · Accepted Answer · 2018-09-15 22:31:58Z

2

You can use the following solution to solve your problem:

{ $pullAll: { roleAssigned: ['user'] } };

edited Sep 15, 2018 at 22:31

Grant Miller

29.2k16 gold badges158 silver badges171 bronze badges

answered Sep 15, 2018 at 18:33

Sagar Chaudhary

1,40310 silver badges24 bronze badges

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