duplicate an array in javascript n times
const makeRepeated = (arr, repeats) =>
Array.from({ length: repeats }, () => arr).flat();
console.log(makeRepeated([1, 2, 3], 2));duplicate an array in javascript n times
const makeRepeated = (arr, repeats) =>
Array.from({ length: repeats }, () => arr).flat();
console.log(makeRepeated([1, 2, 3], 2));first repeated character in a string javascript
function firstRepeatingCharacter(str) {
for (let i = 0; i < str.length; i++) {
if (str.indexOf(str.charAt(i)) !== str.lastIndexOf(str.charAt(i))) {
return str.charAt(i)
}
}
return 'no results found'
}Copyright © 2021 Codeinu
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