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How do I add numbers following a string in JavaScript

I want to console.log a string but also add numbers inside of it. For example if I use the following code:

for (let i = 0; i < 5; i++) {
  coinFlip = Math.round(Math.random());
  if (coinFlip === 1) {
    console.log("#" + i + 1 + " Heads");
  } else {
    console.log("#" + i + 1 + " Tails");
  }
}

Since what I want to console.log starts with a string I can't seem to add numbers right after it. They become strings.

I want to get: "#2 Tails"

But I get: "#11 Tails"

How do I get "#2 Tails" instead of "#11 Tails"?

about 4 years ago · Juan Pablo Isaza
2 answers
Answer question

0

You need to wrap your addition in brackets.

console.log("#" + (i + 1) + " Heads");

or use string interpolation

console.log(`#${i+1} Heads`);
about 4 years ago · Juan Pablo Isaza Report

0

You can first sum up the value of i and 1 to num before the concatination

1)

for (let i = 0; i < 5; i++) {
  coinFlip = Math.round(Math.random());
  const num = i + 1;
  if (coinFlip === 1) {
    console.log("#" + num + " Heads");
  } else {
    console.log("#" + num + " Tails");
  }
}

2)

for (let i = 0; i < 5; i++) {
  coinFlip = Math.round(Math.random());
  if (coinFlip === 1) {
    console.log("#" + (i + 1) + " Heads");
  } else {
    console.log("#" + (i + 1) + " Tails");
  }
}

3)

for (let i = 0; i < 5; i++) {
  coinFlip = Math.round(Math.random());
  if (coinFlip === 1) {
    console.log(`#${i + 1} Heads`);
  } else {
    console.log(`#${i + 1} Tails`);
  }
}

about 4 years ago · Juan Pablo Isaza Report
Answer question
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