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script.js
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132 lines (118 loc) · 2.82 KB
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" use strict ";
var display = document.getElementById("display");
function oneToTen(){
var output = "";
for(i = 1 ; i <= 10 ; i++){
output += i + "<br>";
}
display.innerHTML = output;
}
function oddNumbers(){
var output = "";
for(i = 1 ; i <= 20 ; i++){
if(i % 2 == 1){
output += i + "<br>";
}
}
display.innerHTML = output;
}
function squareNumbers(){
var output = "";
for(i = 1 ; i <= 10 ; i++){
output += (i*i) + "<br>";
}
display.innerHTML = output;
}
function random4(){
var output = "";
for(i = 1 ; i <= 4 ; i++){
output += Math.floor(Math.random() * (101 - 1)) + 1 + "<br>";
}
display.innerHTML = output;
}
function evenNumbers(n){
var output = "";
for(i = 1 ; i < n ; i++){
if(i % 2 == 0){
output += i + "<br>";
}
}
display.innerHTML = output;
}
function powersOfTwo(n){
var output = "";
for(i = 1 ; i <= n ; i++){
output += Math.pow(2,i)+ "<br>";
}
display.innerHTML = output;
}
function areWeThereYet(){
var ask = "";
var output = "";
while(ask!="Yes"){
ask = prompt("Arewethereyet?");
output += "Arewethereyet?"+ "<br>";
output += ask + "<br>";
}
output += "Good!";
display.innerHTML = output;
}
function triangle(){
var output = "";
for(i = 1 ; i <= 5 ; i++){
for(j = 1 ; j <= i ; j++){
output += "*";
}
output += "<br>";
}
display.innerHTML = output;
}
function triangle(){
var output = "";
for(i = 1 ; i <= 5 ; i++){
for(j = 1 ; j <= i ; j++){
output += "*";
}
output += "<br>";
}
display.innerHTML = output;
}
function tableSquare(n){
var timesTableArray = timesTableCreator(n);
var digitsPerColumnArray = digitsPerColumn(n);
var output = "";
for(i = 0; i < n; i++){
output+="<br>|";
for( j = 0; j < n; j ++){
var digitDifference = digitsPerColumnArray[j] - digitsOfSingleNumber(timesTableArray[i][j]);
console.log(digitDifference);
output+=" ";
for( k = 0; k < digitDifference; k++){
output+=" ";
}
output+=timesTableArray[i][j].toString()+" |";
}
}
display.innerHTML = output;
}
function digitsOfSingleNumber(n){
return n.toString().length;
}
function digitsPerColumn(n){
//Returns the max number of digits of each column
var digitsPerColumn = new Array(n);
for(i = 0; i < n; i++){
digitsPerColumn[i] = (n*i).toString().length;
}
return digitsPerColumn;
}
function timesTableCreator(n){
var timesTable = new Array(n);
for (i = 0 ; i < n; i++){
timesTable[i] = new Array(n);
for(j = 0; j < n; j++){
timesTable[i][j] = (i+1) * (j+1);
}
}
return timesTable;
}