FindOne inside map returns no results-CodePudding

I'm trying to do a search using FindOne inside map but it never finds the data by Product Id. I don't understand the reason. Im using express on nodejs.

This is my code:


const calc =  (details) => { 
    
    let grandSubtotal = 0; 

    details.map( async detail  => { 

        const {verifyProduct} = await Product.find({ _id: detail._id}); 

        console.log(detail._id);
        console.log(verifyProduct); // UNDEFINED

...

CodePudding user response：

Should be:

const result = await Promise.all(details.map( async (detail) => { … } ));

when you do it like you done you will get a pending promise object that never going to be resolved, I don’t know if you want to return some results, if no just do await Promise.all

Also this should be:

const calc = async (details) => { … }

CodePudding user response：

You don't need await here

Product.find(({ _id }) =>  _id === detail._id );