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be found in old code: The type attribute: <script type=…> The old HTML standard, HTML4, required… It’s not required anymore.… The type and language attributes are not required.

low-level access to memory or the CPU, because it was initially created for browsers which do not require… There are ways to interact with the camera/microphone and other devices, but they require a user’s explicit… Though possible, it requires explicit agreement (expressed in HTTP headers) from the remote side.… That’s to be expected, because projects and requirements are different for everyone.

Note the memory requirements. Contexts take memory.… Its memory requirements are small, fixed and do not depend on n.… Optimizations are not required in every place, mostly we need a good code, that’s why it’s used.… The only structural modifications that do not require mass-renumbering are those that operate with the… And that’s sometimes required to optimize stuff.

There’s a great rule about that: “if the code is so unclear that it requires a comment, then maybe it… Put them in only if it’s impossible to make the code so simple and self-descriptive that it doesn’t require

Resultsay.jsindex.html Please note: Dynamic imports work in regular scripts, they don’t require

If there are no required fields, or the format is wrong, then that’s an error.… JavaScript requires us to call super in the child constructor, so that’s obligatory.… sometimes become properties of that object like err.cause in the examples above, but that’s not strictly required

We need to ensure that every form has the required token field, and we must also check all requests.… One of these rules is to require explicit permission for tracking cookies from the user.… To do so legally, a website shows a modal “splash screen” for newcomers and requires them to agree to… But GDPR requires an explicit agreement.… When setting a tracking cookie for EU citizens, GDPR requires to ask for permission.

await..of The spread syntax ... doesn’t work asynchronously Features that require… All values must come synchronously, as required by the for..of construct.… The fetch method allows us to supply authorization and other headers if needed – here GitHub requires

The major difference is that curly braces require a return within them to return a value (just like a

prepare to accept the data here”, so that’s the moment when we can run the code to initialize the required… Modern HTML allows us to do many validations using input attributes: required

First, its content can be any valid HTML, even if it normally requires a proper enclosing tag.

The square brackets around default in the syntax above denote that the parameter is optional, not required

element Element to read the value for. pseudo A pseudo-element if required… getComputedStyle requires the full property name We should always ask for the exact property

Explicit conversion is usually required

All previous declarations required us, programmers, to write the function code in the script.

Such transformations are often required in real-life, as many functions and libraries are callback-based

Cross-origin requests – those sent to another domain (even a subdomain) or protocol or port – require… To be precise, there were actually tricks for that, they required special scripts at both the iframe… a result of long discussions, cross-origin requests were allowed, but with any new capabilities requiring

Fixed-length functions only The currying requires the function to have a fixed number of

dive into it, it is worth noting that the correct use of the structures discussed in this article requires… Then, we will register the object, that requires… Such situations require special attention if you are working with FinalizationRegistry.… At this stage, the already known to us weakRefCache function checks whether the required image is in

They require additional resources to support the internal machinery.

More complex cases may require other hashing functions.… There exists a way to create decorators that keep access to function properties, but this requires using

after </body>, then that is automatically moved inside the body, at the end, as the HTML spec requires… word "Hello", the browser will wrap it into <html> and <body>, and add the required

WebSocket is especially great for services that require continuous data exchange, e.g. online games,… No settings are required: just send it out in any format.

In practice though, the CSSOM is rarely required, because we rarely need to modify CSS rules from JavaScript

Most browsers show the example above as required… So if you specify params, make sure you explicitly set all required features to yes.

That requires flag u, covered in the next article.

Unicode supports many different properties, their full list would require a lot of space, so here are

Semicolons are not required after code blocks {...} and syntax constructs with them like loops:

There are no networking methods that require exactly a URL object, strings are good enough.

Ranges and flag “u”.If there are surrogate pairs in the set, flag u is required

Writing tests requires good JavaScript knowledge. But we’re just starting to learn it.… So, to settle down everything, as of now you’re not required to write tests, but you should already be

External scripts that are fetched from another origin (e.g. another site) require… So the resulting “bundled” script does not contain any import/export, it doesn’t require type="module

The spread syntax is used to pass an array to functions that normally require a list of many arguments

But bind requires it, so we must put in something like null.

Within the class, no commas are required. What is a class?.So, what exactly is a class?

So rare symbols that require more than 2 bytes are encoded with a pair of 2-byte characters called “a

For instance, when we need to cover the page with a large message requiring immediate attention, and

For more deeply nested properties, it becomes even uglier, as more repetitions are required.

That’s an interesting question, requiring us to understand why __proto__ is bad.

That requires some extra bookkeeping between them to track changes, but we get many tiny delays instead

That’s because it’s iterable (provides the Symbol.iterator property, as required

For situations that require

A comparison function may return any number Actually, a comparison function is only required… But such use requires an extreme care.

Curly braces are not required

The function might only require certain elements or properties.

Not supported in JavaScript engines, or supported partially yet, requires polyfilling.

same-origin" – the default, don’t send for cross-origin requests, "include" – always send, requires

Requires one more .define argument, and is="...

A polyfill may be required, such as https://github.com/ljharb/String.prototype.matchAll.

That surely would require a break (or return) in for..of over such generator.