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style: var
-> let
and const
codemod
#4444
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adds `no-var` rule to eslint Who else does this? - Google (JS style guide) https://google.github.io/styleguide/jsguide.html#features-local-variable-declarations - Airbnb (popular JS style guide) https://github.com/airbnb/javascript Why do this? Gaiety's explanation: "`let` works the way most devs think `var` works. scope leaking and variable hoisting is a messy confusing idea, JS got updated for a reason" also it's 2024, this isn't too controversial anymore - https://www.freecodecamp.org/news/var-let-and-const-whats-the-difference/ - https://blog.javascripttoday.com/blog/var-vs-let-vs-const/ "The var keyword was originally used for declaring variables in JavaScript. If you’ve browsed an old codebase or an older JavaScript tutorial, you have probably seen it." - https://medium.com/@rithinmenezes/understanding-let-var-and-const-in-javascript-a-guide-to-variable-declarations-f271c5b8dc79 - Airbnb's why https://airbnb.io/javascript/#variables
gaiety-deque
commented
May 3, 2024
@@ -7,5 +7,6 @@ doc/api/* | |||
doc/examples/jest_react/*.js | |||
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|||
lib/core/imports/*.js | |||
lib/core/utils/uuid.js |
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Not really our code, maybe belongs in a vendor file? Felt weird touching it.
Closing this in favor of doing smaller PR's piece by piece over time, but I'll reference the changes here as the ultimate goal. |
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This is a piece of a larger creative time PR so it's easier to review, the full scope can be seen here and includes eslint adjustments not seen here #4444 --- Who else does this? - Google (JS style guide) https://google.github.io/styleguide/jsguide.html#features-local-variable-declarations - Airbnb (popular JS style guide) https://github.com/airbnb/javascript Why do this? Gaiety's explanation: "`let` works the way most devs think `var` works. scope leaking and variable hoisting is a messy confusing idea, JS got updated for a reason" also it's 2024, this isn't too controversial anymore - https://www.freecodecamp.org/news/var-let-and-const-whats-the-difference/ - https://blog.javascripttoday.com/blog/var-vs-let-vs-const/ "The var keyword was originally used for declaring variables in JavaScript. If you’ve browsed an old codebase or an older JavaScript tutorial, you have probably seen it." - https://medium.com/@rithinmenezes/understanding-let-var-and-const-in-javascript-a-guide-to-variable-declarations-f271c5b8dc79 - Airbnb's why https://airbnb.io/javascript/#variables
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For `test/rule-matches` Smaller part of the full vision: #4444
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adds
no-var
rule to eslint(this also pairs well with the already enabled
prefer-const
andno-redeclare
)Who else does this?
Why do this?
Gaiety's explanation: "
let
works the way most devs thinkvar
works. scope leaking and variable hoisting is a messy confusing idea, JS got updated for a reason" also it's 2024, this isn't too controversial anymore<< Describe the changes >>
Closes: