If you missed the introductory post, it's here. For a list of previously solved katas, please refer to the bottom of this page.
If this is your first time seeing my post, please note - these katas are probably randomly assigned per user so please don't go into Codewars thinking we will have exactly the same user experience, I am just posting these in the order that I got them.
Kata #41
DESCRIPTION:
Write a function that takes an array of words and smashes them together into a sentence and returns the sentence. You can ignore any need to sanitize words or add punctuation, but you should add spaces between each word. Be careful, there shouldn't be a space at the beginning or the end of the sentence!
Example
['hello', 'world', 'this', 'is', 'great'] => 'hello world this is great'Starting code:
function smash (words) {
return ""
};My attempt that worked:
function smash (words) {
if (words.length===0){
return ""
} else {
return words.join(" ")
}
};Then shortened it to:
const smash = words => words.length===0 ? "" : words.join(" ")Only to see rank #1 in 'Best Practice' show this:
smash = function (words) {
return words.join(" ");
};I got got again. Apparently it says on the MDN that the separator won't be applied if there is only one element in the array, which made my code longer than it needs to be. Rank #2 shows what could've been my code if I knew that tidbit:
const smash = words => words.join(' ');Rank #3 got fancy with the "use strict":
function smash (words) {
"use strict";
return words.join(' ');
};Rank #4 is also a one-liner like rank #2 but used let:
let smash = words => words.join(" ");Rank #5 shows how it can be solved without using the .join() method:
function smash (words) {
"use strict";
var smashed = '';
for(var i = 0; i<words.length; i++) {
smashed += words[i];
if(i!=words.length-1) {
smashed += ' ';
}
}
return smashed;
};And rank #6 used the .trim() string method, but is probably redundant based on .join() method's logic:
function smash (words) {
"use strict";
return words.join(" ").trim();
};That's it for Kata #41, stay tuned for more katas to be solved!
Link to Kata #1: Square(n) Sum
Link to Kata #2: Convert a Number to a String
Link to Kata #3: DNA to RNA Conversion
Link to Kata #4: Remove First and Last Character
Link to Kata #5: MakeUpperCase
Link to Kata #6: Total amount of points
Link to Kata #7: A Needle in the Haystack
Link to Kata #8: Sum of positive
Link to Kata #9: Basic Mathematical Operations
Link to Kata #10: Beginner - Reduce but Grow
Link to Kata #11: Square Every Digit
Link to Kata #12: Friend or Foe?
Link to Kata #13: Grasshopper - Summation
Link to Kata #14: Get the Middle Character
Link to Kata #15: Descending Order
Link to Kata #16: String ends with?
Link to Kata #17: Sum of two lowest positive integers
Link to Kata #18: Sum of odd numbers
Link to Kata #19: Find the next perfect square!
Link to Kata #20: Reversed Strings
Link to Kata #21: Jaden Casing Strings
Link to Kata #23: Returning Strings
Link to Kata #24: Opposite number
Link to Kata #25: Are You Playing Banjo?
Link to Kata #26: Beginner Series #1 School Paperwork
Link to Kata #27: Remove String Spaces
Link to Kata #28: Invert values
Link to Kata #30: Beginner Series #2 Clock
Link to Kata #31: Is this a triangle?
Link to Kata #32: Sum of the first nth term of Series
Link to Kata #33: Find the smallest integer in the array
Link to Kata #34: Simple multiplication
Link to Kata #35: How good are you really?
Link to Kata #36: Who likes it?
Link to Kata #37: Convert a String to a Number!
Link to Kata #38: Highest and Lowest
