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Day 2 - 10DaysOfJavaScript

Deepak Raj
Skilled in Data Science, Machine Learning, Deep Learning, As Well As Web Development Knowledge. React ❤️ to encourage Author.
Updated on ・2 min read

Day 2 - 10DaysOfJavaScript

Day 2: Conditional Statements: If-Else

  • An integer value score is provided for a students test
  • 0 ≤ score ≤ 30
  • It must return the letter corresponding to grade
function getGrade(score) {
    let grade;
    // Write your code here
    if(score<=5) {
        grade="F";
    }else if(score<=10) {
        grade='E';
    }else if(score<=15) {
        grade='D'
    }else if(score<=20) {
        grade ='C'
    }else if(score<=25) {
        grade ='B'
    }else if(score<=30) {
        grade='A'
    }
    return grade;
}

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Day 2: Conditional Statements: Switch

  • A string is provided where its length is 1 ≤ s ≤ 100
  • Given the following legend, return the correct value based on the first letter
function getLetter(s) {
    let letter;
    // Write your code here
    switch (true) {
        case 'aeiou'.includes(s[0]):
            letter = 'A';
            break;
        case 'bcdfg'.includes(s[0]):
            letter = 'B';
            break;
        case 'hjklm'.includes(s[0]):
            letter = 'C';
            break;
        case 'npqrstvwxyz'.includes(s[0]):
            letter = 'D';
            break;
    }
    return letter;
}

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Day 2: Loops

  • Given a string of s of any length
  • Output, in order, the vowels of that string on each new line
  • Right after, output, in order, the consonants of that string on each new line
/*
 * Complete the vowelsAndConsonants function.
 * Print your output using 'console.log()'.
 */
function vowelsAndConsonants(s) {
    let vowels = ['a','e','i','o','u'];

    for(let v of s) {
        if(vowels.includes(v))
            console.log(v);
    }
    for(let v of s) {
        if(!vowels.includes(v))
            console.log(v);
    }
}
string = 'javascriptloops'
vowelsAndConsonants(string)
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Discussion (1)

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pentacular profile image
pentacular

It would be simpler without the grade variable.
You can just return the value directly.

I also suggest using more spaces and not writing if(x) which looks like a function call.

function getGrade (score) {
    if (score <= 5) {
        return "F";
    } else if (score <= 10) {
       ...
    }
}

Likewise here, although here we can also use better variable names.

function getLetter (string) {
    const letter = string[0];
    // Write your code here
    switch (true) {
        case 'aeiou'.includes(letter):
            return 'A';
        case 'bcdfg'.includes(letter):
            ...
    }
}

You already know that includes works on strings, so why stop now?
And let's use const if you're not going to reassign something.

function vowelsAndConsonants (string) {
    const vowels = 'aeiou';
    ...
}