Linked Questions
105 questions linked to/from What is the loading and execution order of JavaScript scripts in a web page?
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vote
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answer
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Does JavaScript have an order of precedence like CSS? [duplicate]
Does JavaScript behave like CSS in that on-page scripts will take a higher precedence over external scripts? The reason I ask is because I am wondering if I can override an external script's commands ...
- 1,805
0
votes
2
answers
2k
views
Uncaught Reference Error : $ is not defined? [duplicate]
I am beginner in JavaScript and Html. Currently I am learning to make chrome extensions.
My manifest.json file is like this:
{
"manifest_version": 2,
"name": "Hello World",
"version": "...
user13646376
0
votes
2
answers
235
views
Script parsing order in HTML [duplicate]
Browser loading scripts
<!DOCTYPE html>
<html dir="ltr">
<head>
<script type="text/javascript" src='./value-of-a-is-1.js'></script> <!-- Loads slow as per network tab ...
- 13.7k
0
votes
1
answer
221
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How to Make the Accordion FAQ Pop Out Below? [duplicate]
I've been making an Accordion-style FAQ for a website I'm building. I imported the JavaScript code and linked it to the main HTML file to make the motion of popping out the FAQ below when it is ...
- 61
0
votes
1
answer
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When exactly are javascripts parsed and interpreted? [duplicate]
Please feel free to close this question if it is a duplicate(I could not find a question which exactly answers this.)
Experts always recommend to place all your javascript files at the bottom of the ...
- 2,115
3
votes
0
answers
109
views
Why is the result different to what I expected? [duplicate]
<head>
<script src="1.js"></script>
</head>
<body>
<script src="3.js"></script>
</body>
//js1.js
let head = document....
- 2,450
0
votes
1
answer
61
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Is the order of evaluation defined by a specification for JavaScripts in a page [duplicate]
If I include two scripts like so (one directly in the page, one in a remote resource):
<!-- ... -->
<script>
console.log('foo');
</script>
<script src="bar.js"></script&...
- 56k
0
votes
0
answers
56
views
What does "async" do when added in a javascript script tag? [duplicate]
So, I was watching a youtube video about how to make a page load faster. Around 1.56 explains that adding async to a script tag like so <script src=javascriptfile.js async></script> does ...
- 3,976
0
votes
0
answers
40
views
Will JavaScript always be executed before the web page finishes loading if it is placed in the ```<head>```? [duplicate]
I was wondering if the statement is true or false just to be sure. I answer similar question online with true, but the correct answer stated the statement is false.
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Question about Javascript code execution speed regarding the order in which their file are declared [duplicate]
Does the order of javascript files affect the actual speed of the scripts? I am thinking that maybe the browser would be able to read first the scripts in the first file like if you have 5 js files ...
872
votes
13
answers
432k
views
Script Tag - async & defer
I have a couple of questions about the attributes async & defer for the <script> tag which to my understanding only works in HTML5 browsers.
One of my sites has two external JavaScript files ...
- 21.1k
122
votes
10
answers
75k
views
How to defer inline Javascript?
I have the following html code:
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
<script src="https://cdn....
- 7,797
69
votes
11
answers
78k
views
Does javascript have to be in the head tags?
I believe javascript can be anywhere (almost), but I almost always see it in between <head></head>. I am using jquery and wanted to know if it has to be in the head tags for some reason ...
- 19.9k
94
votes
6
answers
105k
views
Nested ES6 classes?
It seems possible to nest a class in a constructor which can then be instantiated from anywhere within the class, is this official?
[EDIT] E.g.,
class C {
constructor() {
class D {
...
- 3,275
53
votes
7
answers
65k
views
Google Analytics Code Explanation
Can someone explain this code 'step by step','line by line'?
I would like to learn more about Asynch code and how Google loads their script, how to
'hide' javascrippt from users (I know that I can't ...
- 1,758