proposal-class-static-block
proposal-item-method
proposal-class-static-block | proposal-item-method | |
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5 | 2 | |
97 | 176 | |
- | - | |
7.3 | 5.9 | |
over 2 years ago | over 3 years ago | |
HTML | HTML | |
BSD 3-clause "New" or "Revised" License | MIT License |
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proposal-class-static-block
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Class Static Initialization Blocks in JavaScript
If you often find yourself working with static fields you may find static initialization blocks to be a useful feature. They can help make static initialization easier. I hope that this post helped you understand what class static initialization blocks in JavaScript are and how to use them. If you want to learn more about this feature, you can take a look at the proposal available on GitHub.
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Updates from the 85th meeting of TC39
Class Static Blocks Class static blocks provide a mechanism to perform additional static initialization during class definition evaluation.
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ES2022 feature: class static initialization blocks
Before bashing a new feature make sure to read then criticize the actual proposal [1]. I personally think the proposal makes sense mostly because of private fields since it is very awkward to initialize those fields outside of the class.
[1] https://github.com/tc39/proposal-class-static-block
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TypeScript 4.4: The Good, The Bad and The Not So Bad
It’s an upcoming ECMAScript feature that’s currently a stage 3 proposal. static blocks allow for a more complex initiation process of static class members.
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Updates from 78th meeting of TC39
Class static initialization block.
proposal-item-method
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at() on built-in indexables
Hence we have item() a proposal on stage-3 is a method on the prototype of the built-in indexable objects: Array, String, and TypedArrays objects, it also supports relative indexing from the end when passed a negative index.
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Updates from 78th meeting of TC39
item() for indexables.
What are some alternatives?
proposal-array-from-async - Draft specification for a proposed Array.fromAsync method in JavaScript.
proposal-intl-enumeration - Return supported values of options, such as timeZone, calendars, numberingSystems, currencies, units
proposal-intl-locale-info - An API to expose information of locale, such as week data ( first day of a week, weekend start, weekend end), hour cycle, measurement system, commonly used calendar, etc.
proposal-resizablearraybuffer - Proposal for resizable array buffers
proposal-structs - JavaScript Structs: Fixed Layout Objects
proposal-string-dedent - TC39 Proposal to remove common leading indentation from multiline template strings
proposal-deiter - Double-Ended Iterator and Destructuring
proposal-is-usv-string - a proposal for a method to determine if a String is welll-formed Unicode
proposal-integer-and-modulus-math - Proposal for additional static methods on Math
proposal-standardized-debug - Standardized debug