Category: JavaScript Answers

Sometimes, we want to remove key and value from hash in JavaScript.

In this article, we’ll look at how to remove key and value from hash in JavaScript.

How to remove key and value from hash in JavaScript?

To remove key and value from hash in JavaScript, we use the delete operator.

For instance, we write

const myHash = {};
myHash["key1"] = { Name: "Object 1" };
myhash["key2"] = null;
myHash["key3"] = { Name: "Object 3" };

delete myHash["key2"];

to create the myHash object.

Then we add some properties to it.

We then remove the key2 property from myHash with

delete myHash["key2"];

Conclusion

To remove key and value from hash in JavaScript, we use the delete operator.

Sometimes, we want to set the HTML5 audio position with JavaScript.

In this article, we’ll look at how to set the HTML5 audio position with JavaScript.

How to set the HTML5 audio position with JavaScript?

To set the HTML5 audio position with JavaScript, we can set the currentTime property of the audio element to the seconds we want to go to.

For instance, we write

audio.currentTime = 30;

to set audio.currentTime to 30 seconds to jump to the 30 seconds position.

audio is the audio element that’s playing the clip.

Conclusion

To set the HTML5 audio position with JavaScript, we can set the currentTime property of the audio element to the seconds we want to go to.

Sometimes, we want to sanitize or rewrite HTML on the client side with JavaScript.

In this article, we’ll look at how to sanitize or rewrite HTML on the client side with JavaScript.

How to sanitize or rewrite HTML on the client side with JavaScript?

To sanitize or rewrite HTML on the client side with JavaScript, we can use the sanitize-html package.

To install it, we run

npm install --save sanitize-html

Then we write

import sanitizeHtml from "sanitize-html";

//...

const sanitized = sanitizeHtml(htmlInput);

to import the sanitizeHtml function and call it with the htmlInput HTNL string to return a sanitized version of the string.

Conclusion

To sanitize or rewrite HTML on the client side with JavaScript, we can use the sanitize-html package.

Sometimes, we want to set navigation timeout with Node.js Puppeteer and JavaScript.

In this article, we’ll look at how to set navigation timeout with Node.js Puppeteer and JavaScript.

How to set navigation timeout with Node.js Puppeteer and JavaScript?

To set navigation timeout with Node.js Puppeteer and JavaScript, we can set the timeout option.

For instance, we write

await page.goto(url, { waitUntil: "load", timeout: 0 });

to call goto with the url we want to go to.

We set timeout to 0 to time out immediately.

Conclusion

To set navigation timeout with Node.js Puppeteer and JavaScript, we can set the timeout option.

Sometimes, we want to redirect to the home page with JavaScript.

In this article, we’ll look at how to redirect to the home page with JavaScript.

How to redirect to the home page with JavaScript?

To redirect to the home page with JavaScript, we set window.location.href to '/'.

For instance, we write

window.location.href = "/";

to redirect to the home page by setting window.location.href to '/'.

Conclusion

To redirect to the home page with JavaScript, we set window.location.href to '/'.