In object-oriented programming, a class is an extensible program-code-template for creating objects,… The notation here is not to be confused with object literals.… Getters/setters.Just like literal… Such features are easy to remember, as they resemble that of literal
The major difference from other ways we’ve seen is that the function is created literally… specific cases, like when we receive code from a server, or to dynamically compile a function from a template
./ does not allow for expressions to be inserted (like string template literals with ${...}).
Backticks also allow us to specify a “template function” before the first backtick.… This feature is called “tagged templates”, it’s rarely seen, but you can read about it in the MDN: Template… literals.
A built-in <template> element serves as a storage for HTML markup templates.… What’s special about <template>?… On the other hand, <template> keeps exactly what we place there.… <template> content is considered “out of the document”, so it doesn’t affect anything.… to using a template string inside a script).
Sometimes developers embed information or template instructions into HTML in them, like this:… With textContent we’ll have it inserted “as text”, all symbols are treated literally.… The second <div> gets the name “as text”, so we literally see <b>Winnie-the-Pooh!
Dot as literally… There are many situations when we’d like a dot to mean literally… If a regexp has it, then a dot . matches literally any character:… The pattern [\s\S] literally says: “a space character OR not a space character”.
Escaping.Let’s say we want to find literally a dot. Not “any character”, but just a dot.… * + ( ) literally, we need to prepend them with a backslash \ (“escape them”).
That declaration is called an object literal.… Literals and properties.We can immediately put some properties into {...} as “key: value” pairs:… also provide a way to obtain the property name as the result of any expression – as opposed to a literal… Computed properties.We can use square brackets in an object literal
Later, in the year 2022, it was officially allowed to use __proto__ in object literals {...}… To create an object with the given prototype, use:
literal syntax: { __proto__: ... }, allows to specify
A bigint is created by appending n to the end of an integer literal or by calling the function BigInt
Setting Rabbit.prototype = animal literally
In an object literal they are denoted by get and set:
custom-menu>:
The shadow DOM template… item"> in the <custom-menu>, but only one <slot name="item"> in the template
Much shorter than using literals every time, and also easy to read.
Here’s what’s going on:
When new Object() is called (or a literal
Method shorthand.There exists a shorter syntax for methods in an object literal:
The dots literally mean “gather the remaining parameters into an array”.
Let’s emphasize: await literally suspends the function execution until the promise settles, and then
stylesheets are HTTP-cached, so they are not redownloaded for multiple components that use same template
Symbols in an object literal.If we want to use a symbol in an object literal
Please note that a JSON-encoded object has several important differences from the object literal:
Strings
inheritance chain: rabbit inherits from animal, that inherits from Object.prototype (because animal is a literal
Literally, event.code will equal KeyZ for people with German layout when they press Y.
It literally allows to “try” running the code and “catch” errors that may occur in it.
The result will be undefined, because the index in square brackets is treated literally.
We mention DocumentFragment mainly because there are some concepts on top of it, like template
Literally, all elements are converted to strings for comparisons.