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The effective JavaScript developer Radoslav Stankov 12/11/2022

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!

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Radoslav Stankov @rstankov

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“It is better to be a good programmer with great habits, than a great programmer.” - Kent Beck

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“Process is automatic decisions for trivial questions and framework for making decisions for all other questions.” - Rado What is process

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1. Focus

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Flow

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“Flow state, also known as being in the zone, is the mental state of operation in which a person performing an activity is fully immersed in a feeling of energized focus, full involvement, and enjoyment in the process of the activity.” - WikipediA Flow

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“Task switching is an executive function that involves the ability to shift attention between one task and another unconsciously.” - WikipediA Task switching

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" you # your $

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What's next %

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Todoist

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Focused Task

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Focused Task https://github.com/RStankov/FocusedTask

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& Eliminate distractions ' block websites ( reduce app notifications ) do not disturb mode

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Manage your energy

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“In cognitive psychology, cognitive load refers to the used amount of working memory resources. ” - WikipediA Cognitive load

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“Ego depletion refers to the idea that self- control or willpower draws upon a limited pool of mental resources that can be used up.” - WikipediA Ego depletion

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“Process is automatic decisions for trivial questions and framework for making decisions for all other questions.” - Rado What is process

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“Process is automatic decisions for trivial questions and framework for making decisions for all other questions.” - Rado What is process

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* Routine ⏲ Reminders , Checklist - Templates . Automations

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Prepare the clothes you are going to wear tomorrow the evening before. /Life Hack

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Capture knowledge

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“Our head is for creating ideas, not storing them” - David Allen, author GTD

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Rado's Head Bear Todoist Idea / Store Next action

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/Split task into parts

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done todo won't do in progress

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https://blog.rstankov.com/how-i-plan-and-execute-features/

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2. Effective

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Know your craft

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First principles and fundaments

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First principles and fundaments TypeScript Node Browser React Next JavaScript

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0 Read the source code

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⚛ 2 React Hooks

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export function useEffect( create: () => (() => void) | void, deps: Array | void | null, ): void { const dispatcher = resolveDispatcher(); return dispatcher.useEffect(create, deps); } https://github.com/facebook/react/blob/main/packages/react/src/ReactHooks.js

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https://github.com/facebook/react/blob/main/packages/react-reconciler/src/ReactFiberHooks.new.js const HooksDispatcherOnMount: Dispatcher = { // ... useRef: mountRef, // ... }; const HooksDispatcherOnUpdate: Dispatcher = { // ... useRef: updateRef, // ... }; const HooksDispatcherOnRerender: Dispatcher = { // ... useRef: updateRef, // ... }; const ContextOnlyDispatcher: Dispatcher = { // ... useRef: throwInvalidHookError, // ... };

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https://github.com/facebook/react/blob/main/packages/react-reconciler/src/ReactFiberHooks.new.js " const HooksDispatcherOnMount: Dispatcher = { // ... useRef: mountRef, // ... }; const HooksDispatcherOnUpdate: Dispatcher = { // ... useRef: updateRef, // ... }; const HooksDispatcherOnRerender: Dispatcher = { // ... useRef: updateRef, // ... }; const ContextOnlyDispatcher: Dispatcher = { // ... useRef: throwInvalidHookError, // ... };

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https://github.com/facebook/react/blob/main/packages/react-reconciler/src/ReactFiberHooks.new.js function updateRef(initialValue: T): {current: T} { const hook = updateWorkInProgressHook(); return hook.memoizedState; }

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function updateWorkInProgressHook(): Hook { // This function is used both for updates and for re-renders triggered by a // render phase update. It assumes there is either a current hook we can // clone, or a work-in-progress hook from a previous render pass that we can // use as a base. When we reach the end of the base list, we must switch to // the dispatcher used for mounts. let nextCurrentHook: null | Hook; if (currentHook === null) { const current = currentlyRenderingFiber.alternate; if (current !== null) { nextCurrentHook = current.memoizedState; } else { nextCurrentHook = null; } } else { nextCurrentHook = currentHook.next; } let nextWorkInProgressHook: null | Hook; if (workInProgressHook === null) { nextWorkInProgressHook = currentlyRenderingFiber.memoizedState; } else { nextWorkInProgressHook = workInProgressHook.next; } if (nextWorkInProgressHook !== null) { // There's already a work-in-progress. Reuse it.

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function updateWorkInProgressHook(): Hook { // This function is used both for updates and for re-renders triggered by a // render phase update. It assumes there is either a current hook we can // clone, or a work-in-progress hook from a previous render pass that we can // use as a base. When we reach the end of the base list, we must switch to // the dispatcher used for mounts. let nextCurrentHook: null | Hook; if (currentHook === null) { const current = currentlyRenderingFiber.alternate; if (current !== null) { nextCurrentHook = current.memoizedState; } else { nextCurrentHook = null; } } else { nextCurrentHook = currentHook.next; } let nextWorkInProgressHook: null | Hook; if (workInProgressHook === null) { nextWorkInProgressHook = currentlyRenderingFiber.memoizedState; } else { nextWorkInProgressHook = workInProgressHook.next; } if (nextWorkInProgressHook !== null) { // There's already a work-in-progress. Reuse it.

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function updateWorkInProgressHook(): Hook { // This function is used both for updates and for re-renders triggered by a // render phase update. It assumes there is either a current hook we can // clone, or a work-in-progress hook from a previous render pass that we can // use as a base. When we reach the end of the base list, we must switch to // the dispatcher used for mounts. let nextCurrentHook: null | Hook; if (currentHook === null) { const current = currentlyRenderingFiber.alternate; if (current !== null) { nextCurrentHook = current.memoizedState; } else { nextCurrentHook = null; } } else { nextCurrentHook = currentHook.next; } let nextWorkInProgressHook: null | Hook; if (workInProgressHook === null) { nextWorkInProgressHook = currentlyRenderingFiber.memoizedState; } else { nextWorkInProgressHook = workInProgressHook.next; } if (nextWorkInProgressHook !== null) { // There's already a work-in-progress. Reuse it.

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Know your tools

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3 Run a test 0 Search in codebase ✈ Jump across files 5 Refactoring - moving code around 6 Search documentation 7 Writing new code ⛩ Common operations

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9

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Alfred + Dash

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https://blog.rstankov.com/my-alfred-setup/

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...more tools

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3. Goals

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“Reading is good, action is better.” - Eric Ries ( Lean Startup)

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: Personal Goals 7 Work Goals ; Baseline

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: Personal Goals ✈ Travel to Japan < 3 Weight 90kg 7 Work Goals = Ship claiming of Product Hub 6 Learn PostgreSQL internals ; Baseline > 10k steps per day ? Train 3 days a week @ Sleep 8 hours a night

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A Yearly B Monthly 
 C Weekly 
 D Daily

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E Top priority F G Second priority H I Third priority J ⏺ Something else ⏺ Something else ⏺ Something else F Priority

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E Top priority F G Second priority H I Third priority J ⏺ Something else ⏺ Something else ⏺ Something else F Priority

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E Status of goals G What went well? I What could have been done better? L What are the goals and plans for next week? M Weekly Review

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Books

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The Pragmatic Programmer Getting Things Done The Checklist Manifesto Soft Skills Peak Performance

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Recap

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“Every productivity system stops working eventually and there’s nothing you can do about it” - Someone on the internet

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“Think about your own workflows and improve them one step of the time/” - Rado

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Thanks :

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https://speakerdeck.com/rstankov