Populate array with multiples of 25 up to certain limit - JS

user_14788517 0
Viewed 326

I'm trying to create an array that will include numbers of 25 up to 300. For example:

const arr = [25, 50, 75, 100, 125...., 300];

Here's what I have so far:

var every25to300 = 300; 

for (var i = 0; i <= every25to300; i++) {
   console.log(i);
}

I've tried something like console.log(i + 25) but that starts from 25 and goes up to 325. I know I'm doing something wrong just not sure what exactly. Can I ask for some help, please?

Many Thanks!

arrays loops javascript
5 Answers

Could use a generator, can even make the generator configurable.

function* incGenerator(start = 0, inc = 25, limit = 300) {
  let i = start;
  while (i < limit) {
    i += inc;
    yield i;
  }
  return limit;
}

const arr = [...incGenerator()];
const arr2 = [...incGenerator(50, 100, 500)];

console.log(arr);
console.log(arr2);

user_6917110

You can use array#from to generate your array.

const arr = Array.from({length: 12}, (_,i) => 25 + (i * 25))
console.log(arr);

You can increment in steps of 25.

const every25to300 = 300, result = [];
for (let i = 25; i <= every25to300; i += 25) {
   result.push(i);
}
console.log(result);

user_47584940

You need to multiply i by 25 inside the loop and divide the upper limit by 25:

var every25to300 = 300; 

for (var i = 0; i <= every25to300 / 25; i++) {
   console.log(i * 25);
}

Or alternatively, increment i by 25 on every iteration:

var every25to300 = 300;

for (var i = 0; i <= every25to300; i += 25) {
  console.log(i);
}

To construct an array, use the push() method:

const arr = [];
var every25to300 = 300;

for (var i = 0; i <= every25to300; i += 25) {
  arr.push(i);
}

console.log(arr);

user_142512210

The simplest solution, You can use step 25(i=i+25) to increment instead of i++

const step = 25;
const initial = 25;
const every25to300 = 300;
let result = [];
for (let i = 25; i <= every25to300; i = i + 25) {
  result.push(i);
}

console.log(result);

// using while loop
result = [];
let index = 0;
while (index < every25to300) {
  index = index + 25;
  result.push(index);
}
console.log(result);

user_15943590

Get loop time value then push it

var start = 25; 
var end = 300
var arry = [];

for(var i = 1; i<= end/start; i++){
   arry.push( i * start )
}

 console.log(arry)
user_102148960
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