Load script after block is inserted

How do I load a script after page load?
Are scripts loaded in order?
How do I make my script run first?
Which method is used to register the script when the page is loaded?
How do I know if my Dom is ready?
Does DOMContentLoaded wait for scripts?
Does the order of script tags matter?
Should I use async or defer?
Which is better async or defer?
How do I run a script in JSON?
How do I run a node script?
Where should I put script in HTML?

How do I load a script after page load?

Just define <body onload="aFunction()"> that will be called after the page has been loaded. Your code in the script is than enclosed by aFunction() . This code works well.

Are scripts loaded in order?

If you aren't dynamically loading scripts or marking them as defer or async , then scripts are loaded in the order encountered in the page. It doesn't matter whether it's an external script or an inline script - they are executed in the order they are encountered in the page.

How do I make my script run first?

How can one make sure that a specific script is first to run in a page? (1) Put it at the top, and (2) choose a browser that implements the language specification.

Which method is used to register the script when the page is loaded?

The onload event occurs when an object has been loaded. onload is most often used within the <body> element to execute a script once a web page has completely loaded all content (including images, script files, CSS files, etc.).

How do I know if my Dom is ready?

The cross-browser way to check if the document has loaded in pure JavaScript is using readyState .

if (document. readyState === 'complete') // The page is fully loaded ...
let stateCheck = setInterval(() => if (document. readyState === 'complete') clearInterval(stateCheck); // document ready , 100); ...
document.

Does DOMContentLoaded wait for scripts?

DOMContentLoaded and scripts

When the browser processes an HTML-document and comes across a <script> tag, it needs to execute before continuing building the DOM. That's a precaution, as scripts may want to modify DOM, and even document. write into it, so DOMContentLoaded has to wait.

Does the order of script tags matter?

No, you should always load Javascript in the order that it's needed. If you're using some jQuery plugins, then you should load jQuery before those plugins, as they may instantiate something that uses the jQuery object(s) without you knowing.

Should I use async or defer?

With async, the file gets downloaded asynchronously and then executed as soon as it's downloaded. With defer, the file gets downloaded asynchronously, but executed only when the document parsing is completed. ... A good strategy is to use async when possible, and then defer when async isn't an option.

Which is better async or defer?

DEFER always causes script execution to happen at the same time as or later than ASYNC. Presumably, scripts are made DEFER or ASYNC because they are less important for the critical content on the page. Therefore, it's better to use DEFER so that their execution happens outside of the main rendering time.

How do I run a script in JSON?

You can easily run scripts using npm by adding them to the "scripts" field in package. json and run them with npm run <script-name> . Run npm run to see available scripts. Binaries of locally install packages are made available in the PATH , so you can run them by name instead of pointing to node_modules/.

How do I run a node script?

download nodejs to your system.
open a notepad write js command "console.log('Hello World');"
save the file as hello.js preferably same location as nodejs.
open command prompt navigate to the location where the nodejs is located. ...
and run the command from the location like c:\program files\nodejs>node hello.js.

Where should I put script in HTML?

You can place any number of scripts in an HTML document. Scripts can be placed in the <body> , or in the <head> section of an HTML page, or in both.