Question 327536 in Javascript Question posted in
A very good W3school tutorial can be found here.

Javascript – Difficulty with push method while creating a function

I want to create a function that logs out "I have 1 bottle. I have 2 bottles. I have 3 bottles" and so on, to the console.
But I keep getting the output below:

I have 1 bottle
I have 1 bottle,bottle
I have 1 bottle,bottle,bottle

let word = []

function test() {
  let x = 1
  if (x <= 1) {
    word.push("bottle")
    console.log("I have " + x + " " + word)
  } else if (x > 1) {
    word.push("bottles")
    console.log("I have " + x + " " + word)
  }

  x++
}

test()
test()
test()
Tags:

2

Answers


  1. 0 
    let word = []
let x = 1

function test() {
  if (x === 1) {
    word.push("bottle")
    console.log("I have " + x + " " + word.join(", "))
  } else if (x > 1) {
    word.push("bottles")
    console.log("I have " + x + " " + word.join(", "))
  }

  x++
}

test()
test()
test()

    like that ?

    Login or Signup to reply.
  2. 0

    This is a perfect use case for a generator.

    const pluralRules = new Intl.PluralRules('en-US');

function pluralize(count, singular, plural) {
  const rule = pluralRules.select(count);
  switch (rule) {
    case 'one'   : return `${count} ${singular}`;
    case 'other' : return `${count} ${plural ?? singular + 's'}`;
    default      : throw new Error(`Unknown: ${rule}`);
  }
}

function* bottleGenerator() {
  let count = 0;
  while (true) {
    yield `I have ${pluralize(++count, 'bottle')}`;
  }
};

const gen = bottleGenerator();

for (let i = 0; i < 3; i++) {
  console.log(gen.next().value);
}

    Here is a more quick-and-dirty-approach:

    const bottleGenerator = function* () {
  yield `I have 1 bottle`;
  let count = 1;
  while (true) yield `I have ${++count} bottles`;
};

const gen = bottleGenerator();
for (let i = 0; i < 3; i++) {
  console.log(gen.next().value);
}

    And here is an alternative that uses an enhanced for-loop:

    const bottleGenerator = function* () {
  yield `I have 1 bottle`;
  let count = 1;
  while (true) yield `I have ${++count} bottles`;
};

let limit = 3;
for (let value of bottleGenerator()) {
  console.log(value);
  if (--limit <= 0) break; // Exit
}
    Login or Signup to reply.
Please signup or login to give your own answer.

Back To Top
Search