What is the procedure for creating an array of words (for example, value_1, value_2,..., value_#) that contains a specific number of words equal to #?

Question

What is the procedure for creating an array of words (for example, value_1, value_2,..., value_#) that contains a specific number of words equal to #?

I want to create an array dynamically based on a variable, like this:

var numRequired = 4

The desired array should look like this:

var requiredArray = ["value_1","value_2","value_3","value_4"]

In this case, the last item in the array should match the value of var numRequired.

Here is what I have tried so far:

I attempted to generate the array using a for loop (I am working with Vue JS)

      data: () => ({
          requiredArray: [],
          tempVariable: []
      }),

      for (var i = 0; i<this.numRequired; ++i) {
        this.tempVariable = "value_" + i;
        this.requiredArray.push(this.tempVariable);
      }

I suspect my implementation may be incorrect. How can I modify it to achieve the desired outcome?

javascript arrays for-loop dynamic

Answer 1

Answer №1

Here is an example utilizing ES6:

const neededArray = Array.from(Array(4), (_,x) => "item_" + (x+1));
console.log(neededArray);

Answer 2

Here is an example utilizing ES6:

const neededArray = Array.from(Array(4), (_,x) => "item_" + (x+1));
console.log(neededArray);

Answer 3

Answer №2

I made a slight adjustment to your code. The variable i now starts from zero, so I have added one to it.

var numNeeded = 4;
requiredArray = [];
for (var i = 0; i<numNeeded; ++i) {
  let itemA = "value_" + (i+1);
  requiredArray.push(itemA);
}
console.log(requiredArray);

Answer 4

I made a slight adjustment to your code. The variable i now starts from zero, so I have added one to it.

var numNeeded = 4;
requiredArray = [];
for (var i = 0; i<numNeeded; ++i) {
  let itemA = "value_" + (i+1);
  requiredArray.push(itemA);
}
console.log(requiredArray);

Answer 5

Answer №3

Here is a concise code snippet:

let targetNumber = 5;

let resultArray = Array(targetNumber).fill('').map((value, index) => `element_${index+1}`);

console.log(resultArray);

Answer 6

Here is a concise code snippet:

let targetNumber = 5;

let resultArray = Array(targetNumber).fill('').map((value, index) => `element_${index+1}`);

console.log(resultArray);

Answer 7

Answer №4

Creating an array with a while loop

let quantity = 5;
let myArray = [];

let index = 1;
while (index <= quantity) {
    myArray.push("item_" + index);
    index++;
}

console.log(myArray);

Answer 8

Creating an array with a while loop

let quantity = 5;
let myArray = [];

let index = 1;
while (index <= quantity) {
    myArray.push("item_" + index);
    index++;
}

console.log(myArray);

What is the procedure for creating an array of words (for example, value_1, value_2,..., value_#) that contains a specific number of words equal to #?

Answer №1

Answer №2

Answer №3

Answer №4

Similar questions

Tips for customizing the checked color of Material UI Radio buttons

What causes an invalid request data error in Node.js using Express?

How can you ensure a script runs only once another script has completed its execution?

Refreshing the database with new information from an HTML table

Using Javascript to target elements with identical attributes

Tips for toggling a menu by clicking a link

Successfully executing a JQuery ajax GET request results in receiving truncated data

Is there a way to create a customized calendar in Node.js?

Assign the JSON response to a variable and then display it

Using the ifelse function in R across multiple tables

Is there a different way to retrieve the tag name of an element besides using

Troubleshooting lack of error responses from Backend RestAPI with Axios

How can you display select elements from an array in Smalltalk?

React is unable to invoke the method

I'm confused by the function: "sort((a: Article, b: Article) => b.votes - a.votes);"

Executing JSON.parse with embedded functions

Guide to manipulating caps using clipping planes and stencil techniques in Three.js with both outer and inner mesh components

What is the best method to determine if a text box is filled or empty?

Having trouble inserting SVG with jQuery using the after method

Guide on executing protractor suites with various users