Is there a way for my manual special case if statement look more pretty and cleaner?

I have a website where some of the Titles have been translated to my country’s language.

Because of that, when I match with worldwide data API, it’ll not match (just some cases) due to API title is using in English name, so I tried the if statement to translate some “specific case” back into English, but it looks really long and doesn’t feel organized well, I think I should put it into 1 other .JS file and just add more special case to that file only for the scalable purpose. But how can I do that and make sure to classify all the cases correctly?

Pardon me if this is an already answered question somewhere, but I don’t know the keyword of it.

This is an example of my code:

static async titleInfo() {

//- Some codes here
//- ...

//- Make URL slug becomes a Title
let slugMod = animeSlug.replace(/-/g, " ").toString()

// Special case that doesn't correct due to country language, have to do manually.
        if (slugMod == "vua hai tac") {
            slugMod = "One Piece"
        if (slugMod == "su mang than chet") {
            slugMod = "Bleach"
        if (slugMod == "nanatsu no taizai that dai toi") {
            slugMod = "Nanatsu no Taizai"
        if (slugMod == "hoi phap su") {
            slugMod = "Fairy Tail"
        if (slugMod == "vua phap thuat 2021") {
            slugMod = "SHAMAN KING (2021)"
        if (slugMod == "hunter x hunter") {
            slugMod = "HUNTER×HUNTER (2011)"
//- Ending code



Thank you for visiting the Q&A section on Magenaut. Please note that all the answers may not help you solve the issue immediately. So please treat them as advisements. If you found the post helpful (or not), leave a comment & I’ll get back to you as soon as possible.

Method 1

An object indexed by search string whose values are the string to replace it with would work.

const titles = {
    'vua hai tac': 'One Piece',
    'su mang than chet': 'Bleach',
    'nanatsu no taizai that dai toi': 'Nanatsu no Taizai',
    // etc
const slugWithSpaces = animeSlug.replace(/-/g, " ");
const correctedTitle = titles[slugWithSpaces] || slugWithSpaces;

If you have a lot of these, yes, consider a separate file.

If you have a lot and you see the need to add even more exceptions quite frequently, and manually editing the source code seems too error-prone, you could make yourself a little app (like with Electron) that would let you copy-paste titles into a page, which then updates the data that your script uses with a button.

Method 2

You could try something similar to Jump table , It can be implemented like this

const handleSpecialCase = 
    'vua hai tac'                    : 'One Piece',
    'su mang than chet'              : 'Bleach',
    'nanatsu no taizai that dai toi' : 'Nanatsu no Taizai'


You could also store this in an another file and then import it, will make your code cleaner! Hope it helps

All methods was sourced from or, is licensed under cc by-sa 2.5, cc by-sa 3.0 and cc by-sa 4.0

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