Fallbacks if the key could not be resolved

[javix]

Hi, it is possible to implement some fallbacks if a key could not be resolved? The following logic would be conceivable:

• If the key in the actual language not available, makes a fallback to defaultLanguage.
• If even defaultLanguage[key] doesn't resolve, it returns the key.

Put this code to Translator instant function before line 263:

var t;
if (!this.translations[language] || !this.translations[language][key]) {
    this.logHandler.info(this.generateMessage("missing", { key: key, language: language }));
    if (language === this.config.defaultLanguage) {
        // This key is not available in the default language     
        return key;
    }
    else {
        // Use default language to translate the key
        t = this.instant(key, params, this.config.defaultLanguage);
    }
}
else {
    t = this.translations[language][key];
}

[tflori]

makes sense - especially when using keys that don't read well. feel free to open a MR.

[javix]

Done. I hope everything fits.

[javix]

Oh, I see: "Coverage decreased". I try to complete the tests.

[tflori]

@javix thx for your contribution