@Guileas

Guileas

@GuileasJoined May 2024

Non stop learning

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Nothing here yet.

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a good discussions and code on beautiful and meaningful project. I would like to level up my coding skills by reviewing code or mentoring.

Guileas's blogs

Guileas Blogblog.etheve.eu5 posts

MongoDB: Join and Format Array of Data

If you have an array of id and you want to retrieve data from another table and filter the properties to return you will use the aggregate feature of mongo and create a pipeline like so: $match - to retrieve the document you're interested in and the...

Jun 28, 2024 · 3 min readblog.etheve.eu

MongoDB - Prevent duplication in your arrays

When we want to insert data in an array in Mongo we use $push . But it won't prevent you from inserting multiple times the same value in your array. If you want to ensure that there's no duplication. You can use : $addToSet How it works When you want...

Jun 12, 2024 · 1 min readblog.etheve.eu

Angular - Custom Structural Directives

I've sometimes asked myself what are *ngIf and *ngFor in Angular but never dig into it before until I faced a case where none of the knowledge I had about Angular concept at that time (services, validators, guards, interceptors, directives) would giv...

Jun 6, 2024 · 3 min readblog.etheve.eu

Deno Mysql - Query VS Execute

When you look at the Deno Mysql documentation you can use two functions to run your query : client.execute(/*SQL*/) client.query(/*SQL*/) I wasn't sure when to use what, so I consulted the code to find out. Both function work the same as the query f...

May 11, 2024 · 1 min readblog.etheve.eu

Mongoose - Add a unique index on an existing collection

When you work with MondoDB you often use indexes to optimize your query. If you want to create a unique index to prevent duplicated entries for a specific field (like email or username for example) on a new collection you can do it by adding the uniq...

May 8, 2024 · 1 min readblog.etheve.eu

Guileas

About

Available for

Guileas's blogs

MongoDB: Join and Format Array of Data

MongoDB - Prevent duplication in your arrays

Angular - Custom Structural Directives

Deno Mysql - Query VS Execute

Mongoose - Add a unique index on an existing collection

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Guileas

About

Available for

Guileas's blogs

MongoDB: Join and Format Array of Data

MongoDB - Prevent duplication in your arrays

Angular - Custom Structural Directives

Deno Mysql - Query VS Execute

Mongoose - Add a unique index on an existing collection