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itsgratien/gratian-pascal-s-triangle.markdown

Created December 1, 2018 14:43
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Gratian: Pascal's Triangle
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gratian-pascal-s-triangle.markdown
Raw
index.html
<!DOCTYPE html>
<html lang="en" dir="ltr">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width-device=width initial-scale=1.0">
<meta name="author" content="gratian tuyishimire">
<title>Gratian: Pascal's Triangle</title>
<link rel="stylesheet" href="css/style.css">
<link rel="shortcut icon" href="https://ibb.co/PwcFzcs">
</head>
<body>
<section class="tr-content">
<div class="some1">
<div class="logo">
<a href="https://imgbb.com/"><img src="https://i.ibb.co/YTddwKg/logv.png" alt="logv" border="0"></a>
</div>
</div>
<div class="tr-all">
<h1>Pascal's Triangle</h1>
<div class="form-based">
<form autocomplete="off">
<div class="form-groups">
<label for="">Your Number</label>
<input type="text" name="number" value=""
placeholder="your number must be here" class="number">
</div>
<button type="button" name="button" class="btn-submit">Submit</button>
</form>
</div>
</div>
</section>
<section class="errorDisp">
</section>
<section class="overlay">
<h1>Pascal's triangle Output result below:</h1>
<div class="dataStore">
</div>
<div class="closeDv">X</div>
</section>
<!--footer!-->
<footer>
<h5>gratian tuyishimire &copy; <span class="fullyear"></span></h5>
</footer>
<!-- external javascript include!-->
<script type="text/javascript" src="js/index.js"></script>
</body>
</html>
Raw
script.js
//# Hey my name is gratian tuyishimire, this is my work
//@thank you.
//@beginning of my code
//@footer add current year to footer
let footerYear=document.querySelector(".fullyear");
//@add footerYear to index.html
footerYear.textContent=new Date().getFullYear();
//so after footer stuff
//@ getform assignment
const getForm=document.querySelector(".btn-submit");
//@ now i am going to deal with number that comes from input value
//@and validation before pascal's triangle
//@but before that let's create element that will be envoked when there is
//error in validation method ;
//@element creation start
const divisionError=document.createElement('div');
const h5=document.createElement('h5');
const closeError=document.createElement('div');
//set textContent
closeError.innerHTML='<p>X</p>';
//set attribute
divisionError.setAttribute('class','errors');
closeError.setAttribute('class','closeError');
divisionError.appendChild(h5);
divisionError.appendChild(closeError);
const validation=number=>{
//@validation
//check if input data is number and is not empty
if (number=="") {
//@set error when input is empty
h5.textContent='please input field is required.';
//append divisionError to errorDisp
const errorDisp=document.querySelector(".errorDisp");
divisionError.style.display='block';
errorDisp.appendChild(divisionError);
}
else if (isNaN(number)) {
h5.textContent='please input field must only be a number.';
//append divisionError to errorDisp
divisionError.style.display='block';
const errorDisp=document.querySelector(".errorDisp");
errorDisp.appendChild(divisionError);
}else {
return true;
}
}
//@add event listener when btn is clicked
//on getForm variable
getForm.addEventListener('click',pascalTriangle);
function pascalTriangle(e){
e.preventDefault();
//validation of input data
let number=document.querySelector(".number").value;
//@check for validation
if (validation(number)==true) {
//make divisionError invisible
divisionError.style.display='none';
//@time to start pascal triangles
var triangle=[
[1]
];
var rep;
for(var i=0; i<number-1;i++)
{
rep=[1];
//@for
for(var j=1; j < triangle[i].length; j++ ){
rep[j]=triangle[i][j]+triangle[i][j-1];
}
rep.push(1);
triangle.push(rep);
}
//create new element and append to the body of html document
const overlay=document.querySelector(".overlay");
const dataStore=document.querySelector('.dataStore');
//@set attribute
let output="";
//@loop through
for(var i in triangle){
output +="<p>"+triangle[i]+"</p>";
}
//append
dataStore.innerHTML="<p>"+output+"</p>";
overlay.style.display='block';
}
}
/*hide error displays*/
closeError.addEventListener('click',()=>{
divisionError.style.display='none';
});
//closing overlay
close=document.querySelector(".closeDv");
close.addEventListener('click',()=>{
document.querySelector(".overlay").style.display='none';
})
Raw
style.css
@import url('https://fonts.googleapis.com/css?family=Comfortaa');
*{
margin: 0;
padding: 0;
}
body{
margin: 0;
padding: 0;
font-family: "Comfortaa",cursive;
background: /*#f9f9f9;*/#fff;
}
a{
text-decoration: none;
}
label{
font-size: 12px;
}
header a{
color: #333;
font-weight: bold;
text-transform: capitalize;
font-size: 20px;
}
.some1{
display: flex;
flex-direction: column;
justify-content: center;
align-items: center;
}
.logo{
width: 60px;
margin-top: 50px;
}
.logo img{
width: 100%;
height: 100%;
}
.tr-content{
background: linear-gradient(rgba(0, 0, 0, 0.2),rgba(0, 0, 0, 0.5)),#1f44add1;
min-height: 88vh;
color: #fff;
}
.tr-all{
margin: auto;
width: 45%;
padding-top: 80px!important;
}
/*form styling*/
.form-based{
width: 100%;
margin-top: 40px;
}
.form-groups input[type="text"]{
width: 100%;
height: 40px;
border: none;
border-bottom:0.1rem solid #7985f6;
outline: none;
box-shadow: none;
background: none;
font-family: "Comfortaa",cursive;
color: #fff;
}
/*placeholder*/
::placeholder { /* Chrome, Firefox, Opera, Safari 10.1+ */
color: #f8f8f8;
opacity: 0.7; /* Firefox */
}
:-ms-input-placeholder { /* Internet Explorer 10-11 */
color: #f8f8f8;
}
::-ms-input-placeholder { /* Microsoft Edge */
color: #f8f8f8;
}
/**/
.btn-submit{
margin-top: 50px;
border: none;
padding-left: 30px;
padding-right: 20px;
background: #6c07ff;
color: #fff;
border-radius: 3px;
text-transform: uppercase;
height: 50px;
font-family: "comfortaa",cursive;
font-size: 12px;
cursor: pointer;
outline: none;
box-shadow: none;
}
/*errors*/
.errors{
position: fixed;
width: 100%;
text-align: center;
padding: 30px;
background: #ff62a7eb;
color: #fff;
bottom: 0;
}
.closeError,.closeDv{
width: 35px;
height: 35px;
background: #0a0a0e47;
z-index: 100;
top: 0;
position: absolute;
right: 0;
margin-right: 70px;
margin-top: 10px;
cursor: pointer;
font-weight: bold;
}
.closeError p{
padding-top: 9px;
font-size: 15px;
font-weight: bold;
font-family: "Comfortaa",cursive;
}
/**/
.overlay{
position: fixed;
width: 100%;
top: 0;
bottom: 0;
background: #1e2a73d1;
display: none;
right: 0;
box-shadow: 0px 0px 2px 2px #ddd;
padding-top: 100px;
text-align: center;
color: #fff;
}
.overlay h1{
margin-bottom: 50px;
}
.dataStore{
text-align: justify;
width: 20%;
height: 60vh;
margin: auto;
overflow: auto;
}
.dataStore p{
font-weight:bold;
}
.closeDv{
background: none!important;
text-align: center;
margin: 20px;
font-size: 30px;
}
/*footer*/
footer{
padding: 20px;
border-top: 1px dashed #ddd;
text-align: center;
}
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