Creating a series of images in JavaScript using a for loop

Question

Creating a series of images in JavaScript using a for loop

Currently attempting to create an array of images, but with a large number of images I am looking into using a "for loop" for generation.

Here is my current code snippet :

var images = [
    "/images/image0000.png",
    "/images/image0005.png",
    "/images/image0010.png",
    "/images/image0015.png",
    "/images/image0020.png",
    "/images/image0025.png",
    "/images/image0030.png",
    "/images/image0040.png",
    "/images/image0045.png",
    "/images/image0050.png"
];

I have additional images to include. Can you advise me on utilizing a for loop to accomplish this task?

The final image in the sequence is /images/image3360.png

Appreciate your assistance!

javascript

Answer 1

Answer №1

To avoid generating actual images, you can instead store file names in an array. Here is a simple method to achieve this:

const MAX = 2560;
const PREFIX = "/photos/photo";
const EXTENSION = ".jpg";
const imageArray = [];
for (let index = 0; index <= MAX; index += 4) {
  imageArray.push(
    PREFIX + ("0000" + index).slice(-4) + EXTENSION
  );
}

The usage of the slice function is derived from this previous solution.

Answer 2

To avoid generating actual images, you can instead store file names in an array. Here is a simple method to achieve this:

const MAX = 2560;
const PREFIX = "/photos/photo";
const EXTENSION = ".jpg";
const imageArray = [];
for (let index = 0; index <= MAX; index += 4) {
  imageArray.push(
    PREFIX + ("0000" + index).slice(-4) + EXTENSION
  );
}

The usage of the slice function is derived from this previous solution.

Answer 3

Answer №2

const increment = 5; // Increment value
const totalImages = 3360/increment; // Total number of images
const imageArray = []; // Array to store images


for(i = 0; i<=totalImages; i++) {
   const currentNum = i*increment; // Calculate suffix
   let string = "/images/image0000";
   string = string.substring(0, string.length - currentNum.toString().length); // Compile number
   imageArray.push(`${string}${currentNum}.png`); // Add the image to the array
}
console.log(imageArray);

Answer 4

const increment = 5; // Increment value
const totalImages = 3360/increment; // Total number of images
const imageArray = []; // Array to store images


for(i = 0; i<=totalImages; i++) {
   const currentNum = i*increment; // Calculate suffix
   let string = "/images/image0000";
   string = string.substring(0, string.length - currentNum.toString().length); // Compile number
   imageArray.push(`${string}${currentNum}.png`); // Add the image to the array
}
console.log(imageArray);

Answer 5

Answer №3

Here is a method to achieve the same result:

const images = [];
for (let i = 0; i <= 3360; i += 5) {
    let imageStr = "";
    let numZeros = 4 - i.toString().length;

    for (let j = 0; j < numZeros; j++) {
        imageStr += "0";
    }
    images.push("/photos/photo" + imageStr + i.toString() + ".jpg");
}

This code snippet utilizes a for loop that iterates by 5, calculates the necessary leading zeros, and appends them to form the desired image string pushed into the array.

Answer 6

Here is a method to achieve the same result:

const images = [];
for (let i = 0; i <= 3360; i += 5) {
    let imageStr = "";
    let numZeros = 4 - i.toString().length;

    for (let j = 0; j < numZeros; j++) {
        imageStr += "0";
    }
    images.push("/photos/photo" + imageStr + i.toString() + ".jpg");
}

This code snippet utilizes a for loop that iterates by 5, calculates the necessary leading zeros, and appends them to form the desired image string pushed into the array.

Creating a series of images in JavaScript using a for loop

Answer №1

Answer №2

Answer №3

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