Is it worth splitting translations between programming languages?

Question

Internationalization and localization

I am developing a multilingual project and came across a situation where a lot of js scripts are used with their own small phrases.
Initially, all translations are stored in the database, but sometimes there are situations when you just need to show a phrase that is packed in a js file.
Hence the question:
What is better, to store separate js translation files (ru.js, en.js, etc.) or register a php file:
<script src="lang.php"></script>
in which to generate a js object with the necessary phrases in the desired language?

Answer 1

multilingualism eliminates hardcoding of phrases anywhere
you can create an object

var dictonary = {
    ru: {
        word1: "фраза 1",
        word2: "фраза 2"
    },
    en: {
        word1: "word 1",
        word2: "word 2"
    }
}

also somewhere globally declare a variable that contains the current language.
in your file, replace all phrases with the corresponding elements of the object
...dictonary[lang]['word2']...

Answer 2

Cheapest: js/php file generator on request, or database change. In the code, you already include the one you need, whether it's ru.php or uk.js