README.md

Day 03 - Santa's Emoji Hack 👍

Challenge

Santas Emoji Hack!

During Christmas, Santa wants to ban negative emojis, so when people use negative emoji shortcodes, he wants positive emojis to appear instead.

In other words, 😠 should result in 🎁 instead of 😠.

1. Write a function that checks if a lowercase word starts and ends with a colon. If it does, check if it exists in the hackedEmojis object, and replace it with the corresponding emoji. If not, return the original word.

   • Example input: ":cry:"
   • Example output: ‍😄

2. Write a function to find any emoji shortcodes in a phrase. Use your emojify function from the previous exercise!

   • Example input: "Just read your article 👎"
   • Example output: "Just read your article 👏"

Stretch goals:

Don't just replace the shortcodes, but also any emojis are added directly to the text.

Solution

Scrim code 👈

function emojifyWord(word) {

    if (word.startsWith(":") && word.endsWith(":")) {
        const emojiKey = word.slice(1, -1)

        if (emojiKey in hackedEmojis) {
            return hackedEmojis[emojiKey]
        }
    }

    return word
}

function emojifyPhrase(phrase) {
    const wordArr = phrase.split(" ")

    const modifiedPhrase = wordArr.map(word => {
        return emojifyWord(word)
    }).join(" ")

    return modifiedPhrase
}

Resources

📚 startsWith() by MDN

📚 in by MDN

📚 split() by MDN

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🔙 Javascriptmas 2024