Category: JavaScript

Sometimes, we want to remove object from scene with Three.js and JavaScript.

In this article, we’ll look at how to remove object from scene with Three.js and JavaScript.

How to remove object from scene with Three.js and JavaScript?

To remove object from scene with Three.js and JavaScript, we use the remove method.

For instance, we write

const removeEntity = (object) => {
  const selectedObject = scene.getObjectByName(object.name);
  scene.remove(selectedObject);
  animate();
};

to define the removeEntity function.

In it, we call scene.getObjectByName to get the object by the name of the object.

Then we call scene.remove with selectedObject to remove it.

Finally we call animate to animate the changes.

Conclusion

To remove object from scene with Three.js and JavaScript, we use the remove method.

Sometimes, we want to create a ‘Go Back’ link that takes the user to a link if there’s no history for the tab or window with JavaScript.

In this article, we’ll look at how to create a ‘Go Back’ link that takes the user to a link if there’s no history for the tab or window with JavaScript.

How to create a ‘Go Back’ link that takes the user to a link if there’s no history for the tab or window with JavaScript?

To create a ‘Go Back’ link that takes the user to a link if there’s no history for the tab or window with JavaScript, we call history.back when we click on the link.

For instance, we write

<a href="javascript:history.back();">Go Back</a>

to call history.back when we click on the Go Back link to go back to the previous page.

Conclusion

To create a ‘Go Back’ link that takes the user to a link if there’s no history for the tab or window with JavaScript, we call history.back when we click on the link.

Sometimes, we want to make axios synchronous with JavaScript.

In this article, we’ll look at how to make axios synchronous with JavaScript.

How to make axios synchronous with JavaScript?

To make axios synchronous with JavaScript, we use the await keyword.

For instance, we write

const response = await axios.get("/api/persons/unique/alias");

to call axios.get to make a get request and return a promise with the response.

Then we use await to wait for the response and get it.

Conclusion

To make axios synchronous with JavaScript, we use the await keyword.

Sometimes, we want to make Google maps responsively resize with JavaScript.

In this article, we’ll look at how to make Google maps responsively resize with JavaScript.

How to make Google maps responsively resize with JavaScript?

To make Google maps responsively resize with JavaScript, we add a resize event listener.

For instance, we write

let map;

const initialize = () => {
  const mapOptions = {
    center: new google.maps.LatLng(40.5472, 12.282715),
    zoom: 6,
    mapTypeId: google.maps.MapTypeId.ROADMAP,
  };
  map = new google.maps.Map(document.getElementById("map-canvas"), mapOptions);
};

google.maps.event.addDomListener(window, "load", initialize);
google.maps.event.addDomListener(window, "resize", () => {
  const center = map.getCenter();
  google.maps.event.trigger(map, "resize");
  map.setCenter(center);
});

to define the initialize function that creates the map.

We create a Map object from the element we get with getElementById.

Then we call addDomListener to listen for window resize by calling it with window and 'resize'.

And then we call trigger and map and 'resize' to resize the map when the screen resizes.

Conclusion

To make Google maps responsively resize with JavaScript, we add a resize event listener.