But the easiest option is likely using display: grid. Or we can translate them into position using transform. we can position: absolute them and offset them with the top and left properties. cells in a container, because if we do, the. cell must come before the element we want to control (in this case, the.
square, and the way the cascade works (for now) is that an element can only control its children (or descendants) and its siblings (or their descendants) - but only as long as the sibling is after the controlling element. Then from the mousemove event object, we can use the clientX and clientY properties to get the x and y coordinate of the mouse cursor on the page. (And yes, it’s OK to use Pug for that, even though I won’t in this example.) Get the Mouse’s Position with the clientX and clientY Properties We can listen to the mousemove event which is triggered whenever we move the mouse. It’s important to maintain proper balance and adjust the grid size to the specific needs of each project.įor now, lets say that we want a 10×10 grid for a total of 100 cells in our markup. But that also means we will have more cells, which can lead to performance issues.
#JAVASCRIPT GET MOUSE COORDINATES HOW TO#
The larger it is, the more accurate our custom property values will be. In this video, you will learn how to get mouse coordinates or cursor position in javascript.Source Code. We’ll do the same with -positionY: the value will be lower as the cursor moves to the top, and higher when it moves to the bottom.Ī few words about the grid size we’re using: We can actually make the grid whatever size we want. So, when the mouse cursor moves to the right side of the screen, the value of the -positionX will be higher and when it moves to left, it gets lower. MouseEvent.layerX Read only Returns the horizontal coordinate of the event relative to the current layer. MouseEvent.ctrlKey Read only Returns true if the control key was down when the mouse event was fired. The goal is to create an invisible grid on the screen, and use the :hover pseudo-class to map each ‘cell’ to a set of values that we will allocate to the custom properties. The Y coordinate of the mouse pointer in local (DOM content) coordinates. We’ll see some of these bonus demos at the end of the article. For example, we could use them to set the top / left properties of an absolute positioned element, control a transform property, set the background-position, manipulate colors, or even set the content of a pseudo-element. Once we have mapped the custom properties for mouse position, we can use them to do pretty much anything we want. square element’s width and height accordingly. we will use the mouse position to set the value of these properties, and then use them set the.
We’ve also added the two custom-properties to the content. This will host the content of our project, and the elements we want to control using the mouse position – in this case, the. content class of that is spread to the width and height of the body. The below syntax will show how we can get X-coordinate or horizontal position using the event.Heads up that we’re only using SCSS here for brevity, but all of this can be done in pure CSS. It will return a numeric value that represents the horizontal position of the cursor. The event.screenX property is used to get the coordinates of the X-axis or the horizontal position of the cursor, where it was clicked on the screen.
#JAVASCRIPT GET MOUSE COORDINATES CODE#
Let us discuss both of them one by one with code examples. JavaScript allows us to use two different properties to get the coordinates of the mouse cursor relative to the screen when the mouse button is pressed anywhere on the screen − We will find the position of the cursor vertically (Y-axis) and Horizontally (X-axis) relative to the screen. In this tutorial, we will learn how we can get the coordinates of the mouse cursor relative to the screen with JavaScript.
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