Simple JS Examples

simple-js-examples.js

let cities = ['Alexandria', 'San Francisco', 'Los Angeles', 'New York', 'Toronto'];

function twoWordedWithForLoop(sentences) {
	let twoWordedSentences = []
	for(let index = 0; index < sentences.length; index++) {
		let currentSentence = sentences[index]; // String
		let splittedSentence = currentSentence.split(" "); // Array
		let numberOfWords = splittedSentence.length // Number

		if (numberOfWords === 2) {
			twoWordedSentences.push(currentSentence)
    }
  }

	return twoWordedSentences;
}

function twoWordedWithWhileLoop(sentences) {
	let twoWordedSentences = []

	let sentencesIterator = sentences.entries() // Array Iterator
	let currentSentenceIterator = sentencesIterator.next(); // Object

	while(!currentSentenceIterator.done) {
	  let currentSentence = currentSentenceIterator.value[1]; // String
		let splittedSentence = currentSentence.split(" "); // Array
		let numberOfWords = splittedSentence.length // Number
        
        console.log(currentSentence, splittedSentence, numberOfWords)

		if (numberOfWords === 2) {
			twoWordedSentences.push(currentSentence)
    }

    currentSentenceIterator = sentencesIterator.next();
	}

	return twoWordedSentences;
}

function map(forEachItem) {
  for(let index = 0; index < sentences.length; index++) {
  	forEachItem(sentences[index])
  }
}

cities.filter((city) => city.split(" ").length === 2)