JS Edabit solution notebook

Return month long name based on number input

function monthName(num) {
    return new Date(2000, num - 1).toLocaleString("en-us", {month: "long"});
}

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Return first & last item in an array

function firstLast(arr) {
    return [arr.shift(), arr.pop()]
}

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When comparing strings and characters, includes() is case-sensitive.

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Count matching char in a string (case-sensitive)

function charCount(myChar, str) {
    return [...str].filter(x => x===myChar).length;
}