Code snippets

You will find here 26 code snippets I find useful so I don't have to Google ™ or Stackoverflow ™ them when I need. There are also code snippets I always forget! 😁 Sometimes, related links to the code will be available. The main difference with other random snippets you will find on the web is that in most cases (for the Symfony related ones) you will be able to run them directly from this website to check the output so you can verify it works as expected ™.

In this snippet, we see how to test if a block in a Twig template exists. It's sometimes helpful to know if one of the parent temp...

Twig

Published on 2021-05-22 • Modified on 2021-05-22

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In this snippet, we see how to get the current environment in a Twig template with Symfony. This is simple to do thanks to the twi...

Twig

Published on 2021-05-05 • Modified on 2021-05-05

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It's something to know about Yarn. When running install (when a previous install has already be done), it doesn't check that every...

yarn

Published on 2021-02-17 • Modified on 2021-02-17

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In this snippet, we will see how to use the JavaScript Fetch API asynchronously. Open your JavaScript console and click on the "fe...

JavaScript

Published on 2020-10-25 • Modified on 2020-10-25

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In this snippet, we will see how to extract a result from a JavaScript array using the reduce function and a callback. First, we d...

JavaScript

Published on 2020-07-19 • Modified on 2020-07-19

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In this snippet, we will see how to detect the status of the Internet connection with JavaScript. A message is displayed just abov...

JavaScript

Published on 2020-07-12 • Modified on 2020-07-12

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In this snippet, we will see how to get your public IP address with the Symfony HTTP client. Be careful that here, by public IP, I...

Symfony

Published on 2020-07-05 • Modified on 2020-07-05

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In this snippet, we will see how to loop on JavaScript arrays. I will go straight to the point and show my preferred ways, the fir...

JavaScript

Published on 2020-06-19 • Modified on 2020-06-19

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In this snippet, we will see how to test if a variable is defined with JavaScript. To correctly understand the following code, we ...

JavaScript

Published on 2020-06-04 • Modified on 2020-06-04

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In this snippet, we will see how to add or remove a class from an HTML element with JavaScript. It can be done with the classList ...

JavaScript

Published on 2020-05-23 • Modified on 2020-05-23

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