How to set character limits in content in ejs template

Question

I am fetching content from Mognodb in EJS template. I have description field which contains more then 500 characters, but I want to show only 50 Characters in my view.

Can anyone tell me how to do it.

Answer 1

In the view you can use JavaScript String.prototype.substring():

<%= description.substring(0, 50) %>

Within MongoDB you can use $substr to return a new field with the desired 50 characters:

db.collectionName.aggregate([{
    $project: {
        title: 1,
        shortDescription: {
            $substr: ["$description", 0, 50]
        }
    }
}]);

Note that in the code example I am using a collection named collectionName and fields names like title and description.. This way will be returned only title and shortDescription with a limit to 50 characters to use in the view

Answer 2

In my case, I was iterating through the keys in the DB so (using the top answer) this is what I did:

<%= users[i].password.substring(0, 6)+"..."%>

In this case, 'users' is the collection in MongoDB, I'm retrieving the password and only showing 6 characters plus '...' to show that the password is actually longer.

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