bradtraversy/javascript_cardio

JavaScript challenges and problems

javascript_cardio's Issues

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Here some:

// CHALLENGE 7: ROUND NUMBER
// Write a function that round a number to gfiven decimal places.
// ex: round(Math.PI, 2) => 3.14
function round(n, places = 0) {}


// CHALLENGE 8: MERGE MULTIPLE ARRAYS
// Write a function that merges multiple given arrays.
// ex: ArrayMerge([1, 2], ['a', 'b']) => [1, 2, 'a', 'b']
function ArrayMerge(...arr) {}


// CHALLENGE 9: SUM CONTENT OF AN ARRAY
// Write a function to sum the content of an array.
// ex: sumArray([1, 2]) => 3
function arraySum(arr) {}


// CHALLENGE 10: OBJECT FOREACH
// Write a forEach function that works with Objects.
// ex: objectForEach({ a: 1, b: 2, c: 3 }, console.log(key, value)) => a, 1; b, 2; etc...  
function objectForEach(obj, callback) {}

PS: Maybe in the season 2 is better.

isPalindrome

https://github.com/bradtraversy/javascript_cardio/blob/master/session1/index_extra.js#L28

function isPalindrome(str) {
  str = str.toLowerCase().trim()
  return str.split('').every((ch, i) => (ch === str[str.length - 1 - i]))
}

function isPalindrome(str) {
  str = str.toLowerCase().trim()
  const half = str.split('').slice(0, str.length / 2)
  return half.every((ch, i) => (ch === str[str.length - 1 - i]))
}

Cheers ⚔️