Array - With random numbers

PHOTO

Wed Jan 26 2022 23:53:43 GMT+0000 (Coordinated Universal Time)

double[] a = new double[n];
for (int i = 0; i <n; i++){
  a[i] = Math.random();
}

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Java Basics

@techwekk

Array - With random numbers

#random #number

Array - With random numbers

double[] a = new double[n];
for (int i = 0; i <n; i++){
  a[i] = Math.random();
}

#javascript #length #number

Number length

function lenOfNum(num) {
  num = Math.abs(num)
  if(num < 10 && num >= 0){
    return 1
  }
  let len = 0
  while(num > 1){
    num = num / 10
    len++
    }
  return len
}

#n8n #json #sip #phone #number

Match only numbers of SIP URI before the @ symbol

.match(/(\d+)(?=\D\@)|(\d+)(?=\@)/g)[0]

#c++ #number #number_theory #modulo

Modulo Operator

// if you want to know a distance between the number and divisor of other number
int n,m;
n = 3, m = 17;
int mod = 17 % 3;     //3 is a divisor of 15 and distance between 15 and 18 is 2 
cout<<mod;            // 2

#c++ #number #number_theory #modulo

#java #pattern #number

Number triangle Pattern using java

// Java Program to print pattern
// Number triangle pattern
import java.util.*;

public class GeeksForGeeks {
	// Function to demonstrate pattern
	public static void printPattern(int n)
	{
		int i, j;
		// outer loop to handle number of rows
		for (i = 1; i <= n; i++) {
			// inner loop to print space
			for (j = 1; j <= n - i; j++) {
				System.out.print(" ");
			}
			// inner loop to print star
			for (j = 1; j <= i; j++) {
				System.out.print(i + " ");
			}
			// print new line for each row
			System.out.println();
		}
	}

	// Driver Function
	public static void main(String args[])
	{
		int n = 6;
		printPattern(n);
	}
}

#javascript #random #number

Random Generated Number

const randomID = new Date().getTime().toString().substring(3, 10)

#javascript #uuid #number

Random Number generator function

const uuid = () => {
  return Date.now().toString(36) + Math.random().toString(36).substr(2);
}

export default uuid;

#javascript #array #random #randomarray #dom

Generate Random Number without repetition

let clickMe = document.querySelector('button');

function getRandomNumber(min, max) {
  let totalEle = max - min + 1;
  let result = Math.floor(Math.random() * totalEle) + min;
  return result;
}
function createArrayOfNumber(start, end) {
  let myArray = [];
  for (let i = start; i <= end; i++) {
    myArray.push(i);
  }
  return myArray;
}
let numbersArray = createArrayOfNumber(1, 10);

clickMe.addEventListener('click', () => {
  if (numbersArray.length === 0) {
    console.log('No more random number');
    return;
  }
  let randomIndex = getRandomNumber(0, numbersArray.length - 1);
  let randomNumber = numbersArray[randomIndex];
  numbersArray.splice(randomIndex, 1);
  console.log(randomNumber);
});

#javascript #random #min #max

Random number between min max

/**
 * Returns a random number between min (inclusive) and max (exclusive)
 */
function getRandomArbitrary(min, max) {
    return Math.random() * (max - min) + min;
}

/**
 * Returns a random integer between min (inclusive) and max (inclusive).
 * The value is no lower than min (or the next integer greater than min
 * if min isn't an integer) and no greater than max (or the next integer
 * lower than max if max isn't an integer).
 * Using Math.round() will give you a non-uniform distribution!
 */
function getRandomInt(min, max) {
    min = Math.ceil(min);
    max = Math.floor(max);
    return Math.floor(Math.random() * (max - min + 1)) + min;
}

#index #random

get random index value from an array

const names = ['david', 'gary', 'shaun', 'stephen'];


function getRandomIndex(array){
  const index = Math.floor(Math.random() * array.length);
  let randomNumber = array[index];
  return randomNumber;
}

getRandomIndex(names)

#random #image #url

Random Image URL

https://source.unsplash.com/user/c_v_r

Array - With random numbers

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