Table Of Contents
- String ends with?
- 📃 Description
- 🤔 Thinking
- 👨💻 Code
- 🐞 Bugs
- 🏁 Finally
- Does my number look big in this?
- 📃 Description
- 🤔 Thinking
- 👨💻 Code
String ends with? : ✍ by jhoffner
📃 Description
Complete the solution so that it returns true if the first argument(string) passed in ends with the 2nd argument (also a string).
🤔 Thinking
I wasn't thinking right at first.
I wanted to make an array with the end of the given string and then compare it to the given ending by pushing
end length times
👨💻 Code
const solution = (str, ending) => {
const arr = str.split("");
let endingL = 0;
let endingArr = [];
while(endingL < ending.length) {
endingArr.push(arr.pop());
endingL += 1;
}
let endingStr = endingArr.reverse().join("");
return ending === endingStr ? true : false;
}
🐞 Bugs
- I think it's the time complexity
- Too much code for a simple task
🏁 Finally
Right After submitting my answer, my internet connection lost and I didn't even have the chance to read other people solutions, So I had the time to laugh on myself and see how stupid I was 🤣, And I remembered the substr
method
So after the internet is back I submited this code
const solution = (str, end) => str.substr(str.length-end.length) === end;
Does my number look big in this? : ✍ by JulianNicholls
📃 Description
A Narcissistic Number is a number which is the sum of its own digits, each raised to the power of the number of digits in a given base. In this Kata, we will restrict ourselves to decimal (base 10).
🤔 Thinking
I have to turn the number into an array so I can map
over it and power every digit with number length and then add it with the reduce method and then check if it's equal to the original number
I removed the map
and made it all with the reduce
👨💻 Code
const narcissistic = num => {
const arrOfDigits = Array.from(String(num), Number);
const pow = arrOfDigits.length;
const sum = arrOfDigits.reduce((acc, val) => val ** pow + acc, 0 )
return sum === num;
}
Now I ranked up to
7kyu
So I have the ability to mark the comments as having spoiler code
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