My own split implementation in javascript

split.js

const mySplit = (str, part) => {
	const arr = [] 
  let currentWorld = ''
	for(let i = 0; i<str.length; i++){
  	const current = str[i]
    if(current !== part){
    	currentWorld+=current
    }
    if(current === part || str.length - 1 === i){
    	arr.push(currentWorld)
      currentWorld = ''
    }
  }
  return arr
}

console.log(mySplit('hello-world-demo', '-'))