I have a slider in my page and slider's indicators are dynamic, It bases on slider's elements' number and width of body.
My code block is:
function setIndicators(){
const indicator = document.createElement("div");
indicator.className = "indicator active";
indicatorContainer.innerHTML = "";
for(let i = 0;i <= maxIndex; i++){
indicatorContainer.appendChild(indicator.cloneNode(true));
}
updateIndicators();
}
which is working fine. But I want to show active indicator but I cannot manipulate elements' classes.
I tried this:
function updateIndicators(index) {
indicators.forEach((indicator) => {
indicator.classList.remove("active");
});
let newActiveIndicator = indicators[index];
newActiveIndicator.classList.add("active");
}
And I am not able to reach every indicators using index or anything I know/find. Also, it seems like NodeList not a HTML element.
Other things you may need:
const indicatorContainer = document.querySelector(".container-indicators");
const indicators = document.querySelectorAll(".indicator");
let maxScrollX = slider.scrollWidth - body.offsetWidth;
let baseSliderWidth = slider.offsetWidth;
let maxIndex = Math.ceil(maxScrollX / baseSliderWidth);
A better one I would suggest using the indicators in a different way. Since your HTML isn't shared, I have to assume a few things:
function clearAll() {
const activeOnes = document.querySelectorAll(".active");
activeOnes.forEach(function(activeOne) {
activeOne.classList.remove("active");
});
}
function chooseOne(index) {
clearAll();
const indicators = document.querySelectorAll(".indicator");
indicators[index].classList.add("active");
}
* {
font-family: 'Operator Mono', consolas, monospace;
}
.indicators {
border: 2px solid #ccc;
display: inline-block;
width: auto;
margin: 15px;
}
.indicators .indicator {
padding: 15px;
line-height: 1;
background-color: #fff;
flex-grow: 1;
text-align: center;
display: inline-block;
}
.indicator.active {
background-color: #f90;
}
<div class="indicators"><div class="indicator">I1</div><div class="indicator">I2</div><div class="indicator">I3</div><div class="indicator">I4</div><div class="indicator">I5</div></div>
<button onclick="chooseOne(2); return false">Select I3</button>
<button onclick="chooseOne(3); return false">Select I4</button>
I would have done this differently this way.
Preview
I'm trying to replicate what is seen in this gif:
Grid Layout
I have to randomize the colors of each div inside the grid-container every second using setInterval() and querySelectorAll() after clicking the button on the top left corner, and display the current time as seen in the GIF. I know that the colors are randomly selected and actually use the CSS rgba() function. Here's what I have in my html file:
<!DOCTYPE html>
<html>
<head>
<style>
.item1 { grid-area: header; }
.item2 { grid-area: menu; }
.item3 { grid-area: main; }
.item4 { grid-area: right; }
.item5 { grid-area: footer; }
.grid-container {
display: grid;
grid-template-areas:
'header header header header header header'
'menu main main main right right'
'menu footer footer footer footer footer';
grid-gap: 10px;
background-color: #2196F3;
padding: 10px;
}
.grid-container > div {
background-color: rgba(255, 255, 255, 0.8);
text-align: center;
padding: 20px 0;
font-size: 30px;
}
.flex-container {
display: flex;
background-color: DodgerBlue;
}
.flex-container > div {
background-color: #f1f1f1;
margin: 10px;
padding: 20px;
font-size: 30px;
}
</style>
<script>
var r = Math.round(Math.random()*255);
var g = Math.round(Math.random()*255);
var b = Math.round(Math.random()*255);
function changeColor(){
for (const elem of document.querySelectorAll('div')) {
r = Math.round(Math.random()*255);
g = Math.round(Math.random()*255);
b = Math.round(Math.random()*255);
elem.style.backgroundColor = "rgb("+r+","+g+","+b+", 0.8)";
}
var myTimer = setInterval(changeColor, 1000);
var running = true;
}
</script>
</head>
<body>
<h1>Grid Layout</h1>
<p>This grid layout contains six columns and three rows:</p>
<div class="flex-container">
<button onclick="changeColor()">GO!</button>
<p id="timeinfo">TIME</p>
</div>
<div class="grid-container">
<div class="item1">Header</div>
<div class="item2">Menu</div>
<div class="item3">Main</div>
<div class="item4">Right</div>
<div class="item5">Footer</div>
</div>
</body>
</html>
I'm lost in regards to that. Any insight would be appreciated. Thanks!
You need to take the setInterval() function out of the changeColor() function. You are creating a new interval with each subsequent changeColor() recursive call, and that is what's causing the speed up until we become epileptic. Plus add the more specific selector others have mentioned ('.grid-container > div'). This is something that is probably better done in a reactive style, rather than looping through an array of elements every second, but if you are just getting into html/js/css this is a pretty good little test. I would probably do something more like this:
var r = Math.round(Math.random()*255);
var g = Math.round(Math.random()*255);
var b = Math.round(Math.random()*255);
var myTimer;
function startSwitching() {
myTimer = setInterval(changeColor, 1000);
}
function stopSwitching() {
clearInterval(myTimer);
}
function changeColor(){
for (const elem of document.querySelectorAll('.grid-container > div')) {
r = Math.round(Math.random()*255);
g = Math.round(Math.random()*255);
b = Math.round(Math.random()*255);
elem.style.backgroundColor = "rgb("+r+","+g+","+b+", 0.8)";
}
}
You need to be careful using intervals and make sure you clean up after yourself, or you could crash the browser. Also, you didn't really ask a question, so it's unclear what exactly you are wanting to change.
Add document.querySelectorAll('.grid-container > div') in for loop, so that only divs inside grid-container will change color.
document.querySelectorAll('div') actually returns a list of elements. In order to change the styling, you'll want to iterate through the elements. Here's one way you could go about doing that:
for (const elem of document.querySelectorAll('.grid-container > div')) {
r = Math.round(Math.random()*255);
g = Math.round(Math.random()*255);
b = Math.round(Math.random()*255);
elem.style.backgroundColor = "rgb("+r+","+g+","+b+")";
}
I am having difficulty getting my image to rotate when I click on it.
I've attached a link to fiddle with my HTML, CSS and JS
http://jsfiddle.net/5x9tgo07/32/
Here is my HTML
<html>
<header>
<h1 id='heading'>SELF</h1>
</header>
<hr>
<body>
<div class='introCard'>
<img id='self' src="https://image.ibb.co/djffuz/self_eye_centered.jpg"/>
</div>
</body>
</html>
Here is my CSS
header {
width: 100%;
height: 75px;
display: flex;
flex-direction:column;
align-items: center;
}
.introCard {
width: 100%;
margin-top: 35px;
margin-bottom: 25px;
border-radius: 5px;
display: flex;
flex-direction: column;
align-items: center
}
div img {
width: 35%;
}
hr {
width: 50%
}
Here is my JS
let imageToSpin = document.getElementById('self');
function spinImage() {
imageToSpin.rotate(20 * Math.PI/180);
}
imageToSpin.onclick = spinImage;
rotate is not a method of the Element object.
A proper way to rotate the image would be adding (or toggling) a CSS class and rotate it using a rotate().
Using your example:
JS File
let imageToSpin = document.getElementById('self');
imageToSpin.onclick = function () {
imageToSpin.classList.toggle('rotated')
};
CSS File
.rotated {
transform: rotate(90deg)
}
And of course the image with self id in the HTML somewhere.
Here is your JSFiddle updated.
If you need to calculate the deg in JS, then you can set the CSS property by hand in the onclick function directly.
create a closure around the stuff you want to use, and then use the style.transform like so:
let imageToSpin = document.getElementById('self');
function spinImage(imageToSpin) {
var count = 0
return function() {
count += 10;
imageToSpin.style.transform = `rotate(${count}deg)`;
}
}
imageToSpin.onclick = spinImage(imageToSpin);
Here's how you could set it up in a quick and short way:
var rotate_angle = 0;
<img src='blue_down_arrow.png' onclick='rotate_angle = (rotate_angle + 180) % 360; $(this).rotate(rotate_angle);' /></a>
I have 2 boxes and a vertical div line in one unique container div (code and fiddle below).
I'm using CSS grids to position my elements inside the container
What I'd like to accomplish is to use the vertical line to resize horizontally the two boxes based on the position of the vertical line.
I apologize if the question is noobish, I am new to web development, only used Python before, already tried to google and stackoverflow search but all solutions seem overly complicated and generally require additional libraries, I was looking for something simpler and JS only.
HTML:
<div class="wrapper">
<div class="box a">A</div>
<div class="handler"></div>
<div class="box b">B</div>
</div>
CSS:
body {
margin: 40px;
}
.wrapper {
display: grid;
grid-template-columns: 200px 8px 200px;
grid-gap: 10px;
background-color: #fff;
color: #444;
}
.box {
background-color: #444;
color: #fff;
border-radius: 5px;
padding: 20px;
font-size: 150%;
resize: both;
}
.handler{
width: 3px;
height: 100%;
padding: 0px 0;
top: 0;
background: red;
draggable: true;
}
https://jsfiddle.net/gv8Lwckh/6/
What you intend to do can be done using CSS flexbox—there is no need to use CSS grid. The bad news is that HTML + CSS is not so smart that declaring resize and draggable will make the layout flexible and adjustable by user interaction. For that, you will have to use JS. The good news is that this is actually not too complicated.
Here is a quick screen grab of output the code below:
However, for you to understand the code I will post below, you will have to familiarize yourself with:
Event binding using .addEventListener. In this case, we will use a combination of mousedown, mouseup and mousemove to determine whether the user is in the middle of dragging the element
CSS flexbox layout
Description of the solution
Initial layout using CSS
Firstly, you will want to layout your boxes using CSS flexbox. We simply declare display: flex on the parent, and then use flex: 1 1 auto (which translates to "let the element grow, let the element shrink, and have equal widths). This layout is only valid at the initial rendering of the page:
.wrapper {
/* Use flexbox */
display: flex;
}
.box {
/* Use box-sizing so that element's outerwidth will match width property */
box-sizing: border-box;
/* Allow box to grow and shrink, and ensure they are all equally sized */
flex: 1 1 auto;
}
Listen to drag interaction
You want to listen to mouse events that might have originated from your .handler element, and you want a global flag that remembers whether the user is dragging or not:
var handler = document.querySelector('.handler');
var isHandlerDragging = false;
Then you can use the following logic to check if the user is dragging or not:
document.addEventListener('mousedown', function(e) {
// If mousedown event is fired from .handler, toggle flag to true
if (e.target === handler) {
isHandlerDragging = true;
}
});
document.addEventListener('mousemove', function(e) {
// Don't do anything if dragging flag is false
if (!isHandlerDragging) {
return false;
}
// Set boxA width properly
// [...more logic here...]
});
document.addEventListener('mouseup', function(e) {
// Turn off dragging flag when user mouse is up
isHandlerDragging = false;
});
Computing the width of box A
All you are left with now is to compute the width of box A (to be inserted in the [...more logic here...] placeholder in the code above), so that it matches that of the movement of the mouse. Flexbox will ensure that box B will fill up the remaining space:
// Get offset
var containerOffsetLeft = wrapper.offsetLeft;
// Get x-coordinate of pointer relative to container
var pointerRelativeXpos = e.clientX - containerOffsetLeft;
// Resize box A
// * 8px is the left/right spacing between .handler and its inner pseudo-element
// * Set flex-grow to 0 to prevent it from growing
boxA.style.width = (pointerRelativeXpos - 8) + 'px';
boxA.style.flexGrow = 0;
Working example
var handler = document.querySelector('.handler');
var wrapper = handler.closest('.wrapper');
var boxA = wrapper.querySelector('.box');
var isHandlerDragging = false;
document.addEventListener('mousedown', function(e) {
// If mousedown event is fired from .handler, toggle flag to true
if (e.target === handler) {
isHandlerDragging = true;
}
});
document.addEventListener('mousemove', function(e) {
// Don't do anything if dragging flag is false
if (!isHandlerDragging) {
return false;
}
// Get offset
var containerOffsetLeft = wrapper.offsetLeft;
// Get x-coordinate of pointer relative to container
var pointerRelativeXpos = e.clientX - containerOffsetLeft;
// Arbitrary minimum width set on box A, otherwise its inner content will collapse to width of 0
var boxAminWidth = 60;
// Resize box A
// * 8px is the left/right spacing between .handler and its inner pseudo-element
// * Set flex-grow to 0 to prevent it from growing
boxA.style.width = (Math.max(boxAminWidth, pointerRelativeXpos - 8)) + 'px';
boxA.style.flexGrow = 0;
});
document.addEventListener('mouseup', function(e) {
// Turn off dragging flag when user mouse is up
isHandlerDragging = false;
});
body {
margin: 40px;
}
.wrapper {
background-color: #fff;
color: #444;
/* Use flexbox */
display: flex;
}
.box {
background-color: #444;
color: #fff;
border-radius: 5px;
padding: 20px;
font-size: 150%;
/* Use box-sizing so that element's outerwidth will match width property */
box-sizing: border-box;
/* Allow box to grow and shrink, and ensure they are all equally sized */
flex: 1 1 auto;
}
.handler {
width: 20px;
padding: 0;
cursor: ew-resize;
flex: 0 0 auto;
}
.handler::before {
content: '';
display: block;
width: 4px;
height: 100%;
background: red;
margin: 0 auto;
}
<div class="wrapper">
<div class="box">A</div>
<div class="handler"></div>
<div class="box">B</div>
</div>
Here's an example of the drag event handling, but using CSS Grids
The trick is to set the grid-template-columns (or rows) on the grid container rather than than the size of the grid items
let isLeftDragging = false;
let isRightDragging = false;
function ResetColumnSizes() {
// when page resizes return to default col sizes
let page = document.getElementById("pageFrame");
page.style.gridTemplateColumns = "2fr 6px 6fr 6px 2fr";
}
function SetCursor(cursor) {
let page = document.getElementById("page");
page.style.cursor = cursor;
}
function StartLeftDrag() {
// console.log("mouse down");
isLeftDragging = true;
SetCursor("ew-resize");
}
function StartRightDrag() {
// console.log("mouse down");
isRightDragging = true;
SetCursor("ew-resize");
}
function EndDrag() {
// console.log("mouse up");
isLeftDragging = false;
isRightDragging = false;
SetCursor("auto");
}
function OnDrag(event) {
if (isLeftDragging || isRightDragging) {
// console.log("Dragging");
//console.log(event);
let page = document.getElementById("page");
let leftcol = document.getElementById("leftcol");
let rightcol = document.getElementById("rightcol");
let leftColWidth = isLeftDragging ? event.clientX : leftcol.clientWidth;
let rightColWidth = isRightDragging ? page.clientWidth - event.clientX : rightcol.clientWidth;
let dragbarWidth = 6;
let cols = [
leftColWidth,
dragbarWidth,
page.clientWidth - (2 * dragbarWidth) - leftColWidth - rightColWidth,
dragbarWidth,
rightColWidth
];
let newColDefn = cols.map(c => c.toString() + "px").join(" ");
// console.log(newColDefn);
page.style.gridTemplateColumns = newColDefn;
event.preventDefault()
}
}
#page {
height: 100%;
background-color: pink;
display: grid;
grid-template-areas: 'header header header header header' 'leftcol leftdragbar tabs tabs tabs' 'leftcol leftdragbar tabpages rightdragbar rightcol' 'leftcol leftdragbar footer footer footer';
grid-template-rows: min-content 1fr 9fr 1fr;
grid-template-columns: 2fr 6px 6fr 6px 2fr;
}
/*****************************/
#header {
background-color: lightblue;
overflow: auto;
grid-area: header;
}
#leftcol {
background-color: #aaaaaa;
overflow: auto;
grid-area: leftcol;
}
#leftdragbar {
background-color: black;
grid-area: leftdragbar;
cursor: ew-resize;
}
#tabs {
background-color: #cccccc;
overflow: auto;
grid-area: tabs;
}
#tabpages {
background-color: #888888;
overflow: auto;
grid-area: tabpages;
}
#rightdragbar {
background-color: black;
grid-area: rightdragbar;
cursor: ew-resize;
}
#rightcol {
background-color: #aaaaaa;
overflow: auto;
grid-area: rightcol;
}
#footer {
background-color: lightblue;
overflow: auto;
grid-area: footer;
}
<body onresize="ResetColumnSizes()">
<div id="page" onmouseup="EndDrag()" onmousemove="OnDrag(event)">
<div id="header">
Header
</div>
<div id="leftcol">
Left Col
</div>
<div id="leftdragbar" onmousedown="StartLeftDrag()"></div>
<div id="tabs">
Tabs
</div>
<div id="tabpages">
Tab Pages
</div>
<div id="rightdragbar" onmousedown="StartRightDrag()"></div>
<div id="rightcol">
Rightcol
</div>
<div id="footer">
Footer
</div>
</div>
</body>
https://codepen.io/lukerazor/pen/GVBMZK
I changed, so you can add more Horizontal and Vertical slider.
test1.html:
<!DOCTYPE html>
<html>
<head>
<link rel="stylesheet" href="test1.css">
<script src= "test1.js" > </script>
</head>
<body>
<div id="page" onmouseup="EndDrag()" onmousemove="OnDrag(event)">
<div id="header">
Header asdlkj flkdfj sdflkksdjf sd;flsdjf sd;flkjsd;fljsd;flsdj;fjsd f;sdlfj;sdlfj
</div>
<div id="leftcol">
Left Col
</div>
<div id="leftdragbar" onmousedown="StartHDrag(1)"></div>
<div id="tabs">
Tabs
</div>
<div id="topdragbar" onmousedown="StartVDrag(2)"></div>
<div id="tabpages">
Tab Pages
</div>
<div id="rightdragbar" onmousedown="StartHDrag(3)"></div>
<div id="rightcol">
Rightcol
</div>
<div id="botdragbar" onmousedown="StartVDrag(4)"></div>
<div id="footer">
Footer
</div>
</div>
<div id= 'status'></div>
</body>
</html>
test1.css
body {
}
#page {
height: 100vh;
background-color: pink;
display: grid;
grid-template-areas:
'header header header header header'
'leftcol leftdragbar tabs tabs tabs'
'leftcol leftdragbar topdragbar topdragbar topdragbar'
'leftcol leftdragbar tabpages rightdragbar rightcol'
'botdragbar botdragbar botdragbar botdragbar botdragbar'
'footer footer footer footer footer';
grid-template-rows: min-content 1fr 6px 9fr 6px 1fr;
grid-template-columns: 2fr 6px 6fr 6px 2fr;
}
/*****************************/
#header {
background-color: lightblue;
overflow: auto;
grid-area: header;
}
#leftcol {
background-color: #aaaaaa;
overflow: auto;
grid-area: leftcol;
}
#leftdragbar {
background-color: black;
grid-area: leftdragbar;
cursor: ew-resize;
}
#topdragbar {
background-color: black;
grid-area: topdragbar;
cursor: ns-resize;
}
#botdragbar {
background-color: black;
grid-area: botdragbar;
cursor: ns-resize;
}
#tabs {
background-color: #cccccc;
overflow: auto;
grid-area: tabs;
}
#tabpages {
background-color: #888888;
overflow: auto;
grid-area: tabpages;
}
#rightdragbar {
background-color: black;
grid-area: rightdragbar;
cursor: ew-resize;
}
#rightcol {
background-color: #aaaaaa;
overflow: auto;
grid-area: rightcol;
}
#footer {
background-color: lightblue;
overflow: auto;
grid-area: footer;
}
test1.js
let isHDragging = false;
let isVDragging = false;
let cols = ['2fr','6px','6fr','6px','2fr']; //grid-template-columns: 2fr 6px 6fr 6px 2fr;
let colns = ['leftcol','','tabpages','','rightcol'];
let Tcols = [];
let rows = ['min-content','1fr','6px','9fr','6px','1fr']; //grid-template-rows: min-content 1fr 6px 9fr 1fr
let rowns = ['header','tabs','','tabpages','','footer'];
let Trows = []
let CLfactor ;
let CRfactor ;
let gWcol = -1;
let gWrow = -1;
function StartHDrag(pWcol) {
isHDragging = true;
SetCursor("ew-resize");
CLfactor = parseFloat(cols[pWcol-1]) / document.getElementById(colns[pWcol-1]).clientWidth;
CRfactor = parseFloat(cols[pWcol+1]) / document.getElementById(colns[pWcol+1]).clientWidth;
Tcols = cols.map(parseFloat);
gWcol = pWcol;
}
function StartVDrag(pRow) {
isVDragging = true;
SetCursor("ns-resize");
CLfactor = parseFloat(rows[pRow-1]) / document.getElementById(rowns[pRow-1]).clientHeight;
CRfactor = parseFloat(rows[pRow+1]) / document.getElementById(rowns[pRow+1]).clientHeight;
Trows = rows.map(parseFloat);
gWrow = pRow;
}
function SetCursor(cursor) {
let page = document.getElementById("page");
page.style.cursor = cursor;
}
function EndDrag() {
isHDragging = false;
isVDragging = false;
SetCursor("auto");
}
function OnDrag(event) {
if(isHDragging) {
Tcols[gWcol-1] += (CLfactor * event.movementX);
Tcols[gWcol+1] -= (CLfactor * event.movementX);
cols[gWcol-1] = Math.max(Tcols[gWcol-1],0.01) + "fr";
cols[gWcol+1] = Math.max(Tcols[gWcol+1],0.01) + "fr";
let newColDefn = cols.join(" ");
page.style.gridTemplateColumns = newColDefn;
} else if (isVDragging) {
Trows[gWrow-1] += (CLfactor * event.movementY);
Trows[gWrow+1] -= (CLfactor * event.movementY);
rows[gWrow-1] = Math.max(Trows[gWrow-1],0.01) + "fr";
rows[gWrow+1] = Math.max(Trows[gWrow+1],0.01) + "fr";
let newRowDefn = rows.join(" ");
page.style.gridTemplateRows = newRowDefn;
document.getElementById("footer").innerHTML = newRowDefn;
}
event.preventDefault()
}
To actually match the question! Making a dragbar to resize divs inside CSS grids.
Here is a possible way, the original OP layout is kept, as well as the CSS, using Grids.
The goal is to capture the original state of the Grid Template Columns, and convert it to floats.
The browser always compute in pixels, and the sum of those columns + the gap, represent the total width of the container element. That sum must always be the same, or the elements will jump!
NB: Calls to .getComputedStyle() are not very efficient, optimisation is likely possible here!
Notice, doing this way using grids and screenX avoid the common jumping bug on mouse down.
Comments are added, this will allow to apply the logic with any number of columns, or rows, good luck.
With the usage of pointer events, it does works from a touch device as well.
let target = document.querySelector("div") // Target container element
let md = false; // Will be true at mouse down
let xorigin; // Click origin X position
let gtcorigin = []; // Origin Grid Template Columns in pixels
const pointerdown = (e) => {
if (e.target.classList[0] === "handler"){ // Filter to target the wanted element
md = true; // Set mouse down
xorigin = e.screenX; // Store the origin X position
// Grid Template Columns, array of pixels as float
gtcorigin = window.getComputedStyle(target)["grid-template-columns"].split(" ").map((a) => +(a.slice(0, -2)));
document.body.style.cursor = "col-resize" // This makes things nice
document.body.style.userSelect = "none" // This makes things nice
}
}
const pointerup = (e) => {
md = false; // Reset bool at mouse up
document.body.style.cursor = "pointer"
document.body.style.userSelect = "unset"
}
const resizer = (e) => {
if (md){ // Mouse is down hover the handler element
let gtc = window.getComputedStyle(target)["grid-template-columns"].split(" ").map((a) => +(a.slice(0, -2))); // Grid Template Columns, array of pixels as float
let xdragdif = xorigin - e.screenX; // Move in pixels since the click
gtc[0] = gtcorigin[0] - xdragdif // First column, if negative, it will grow
gtc[2] = gtcorigin[2] + xdragdif // Third column
gtc = gtc.map((a) => a+"px") // Set back the values in string with "px"
document.querySelector("console").textContent = gtc.join(" ") // !!! This is only for the demo
target.style.gridTemplateColumns = gtc.join(" ") // Apply the new Grid Template Column as inline style.
}
}
// Attach all events on the largest container element. Here the body is used.
document.body.addEventListener("pointerdown", pointerdown, false)
document.body.addEventListener("pointerup", pointerup, false)
document.body.addEventListener("pointermove", resizer, false)
body {
margin: 40px;
overflow-x: hidden
}
.wrapper {
display: grid;
grid-template-columns: 200px 8px 200px;
grid-gap: 10px;
background-color: #fff;
color: #444;
}
.box {
background-color: #444;
color: #fff;
border-radius: 5px;
padding: 20px;
font-size: 150%;
}
.handler{
width: 3px;
height: 100%;
padding: 0px 0;
top: 0;
background: red;
cursor: col-resize
}
<div class="wrapper">
<div class="box">A</div>
<div class="handler"></div>
<div class="box">B</div>
</div>
<console></console>
No limits are applied here, this can be enhanced with CSS only, using min-width and other similar rules, and the float values can be retrieved to create range sliders and more, this way.
I am trying to create a checker board using pure JavaScript, not jQuery.
I have created the first row, but cannot seem to "stack" the rows to create a full board. If there is a better way to go about this than the road I'm going down, please enlighten me.
<!DOCTYPE html>
<html>
<head>
<title>Checkerboard</title>
<style>
.box {
height: 50px;
width: 50px;
border: 1px solid black;
display: inline-block;
}
</style>
</head>
<body>
<div class="box"></div>
</body>
<script type="text/javascript">
var row = function (node, count) {
for (var i = 1; i < count; i++) {
if (i % 2 === 0) {
copy = node.cloneNode(true);
node.parentNode.insertBefore(copy, node).style.backgroundColor = "white";
} else {
copy = node.cloneNode(true);
node.parentNode.insertBefore(copy, node).style.backgroundColor = "red";
}
}
}
row(document.querySelector('.box'), 8);
</script>
</html>
Your code works fine, you just need to actually run the function you've created:
row(document.getElementsByClassName("box")[0], 50);
JSFiddle: http://jsfiddle.net/63dcjsk4/
Edit
If you're talking about the gap that appears between rows, fix this by using float and removing the inline-block display:
.box {
border: 1px solid black;
height: 50px;
float: left;
width: 50px;
}
JSFiddle: http://jsfiddle.net/63dcjsk4/1/