React useEffect Patterns for Reliable Side Effects

🧠 useEffect Cheat Sheet (Beginner → Confident)

1️⃣ What is useEffect? (Plain English)

useEffect lets you run side effects in a React component.

👉 Side effects = things that are not UI rendering.

  • Fetching data
  • Calling APIs
  • Using localStorage
  • Timers (setTimeout, setInterval)
  • Event listeners
  • Updating the document title

Rule of thumb:
If it touches the outside world, it belongs in useEffect.


2️⃣ Basic Syntax (Memorize This)

useEffect(() => {
  // side effect code
}, [dependencies]);

📌 Two parts:

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Industrial Revolution Impacts: Economic, Social, Demographic & Environmental Effects

Industrial Revolution: Key Consequences

Economic Consequences

The Industrial Revolution had deep economic, social, demographic, and environmental consequences. Economically, production increased enormously. Goods were produced faster, more cheaply, and in larger quantities. This led to the creation of factories, rapid economic growth, and the development of the banking system. Capitalism became the dominant economic system, and colonialism expanded to obtain raw materials and markets.

Social Consequences

Social

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European Wine Vintages: Grillo, Riesling, Grüner & More

2023 Vignaverde Grillo — Marco De Bartoli, Sicily

Grillo from old, traditionally trained vines in Western Sicily. Fermented in stainless steel to keep purity, but the grape itself brings structure and slight phenolic grip. Aromas of citrus peel, herbs, almond and sea salt. De Bartoli is known for working with native varieties and respecting oxidative stability without undue oxidation — very Mediterranean, very precise.

2024 Gelber Muskateller — Zehnthof Luckert, Franken

Cold fermentation in stainless

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Macroeconomics Exam: Solow, Growth, Policy, Cycles

Macroeconomics Exam — Answer 3 of 10 Questions

Please answer 3 of the 10 questions attached below.


Solow Model: Steady-State Conclusions

1. Conclusion of the Solow Growth Model – The steady-state level

The Solow growth model shows that an economy moves toward a steady state in the long run. In this steady state, capital per worker and output per worker are constant. Investment is just enough to cover depreciation and population growth. Long-run growth of income per worker depends only on technological

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Corporate Social Responsibility (CSR): Strategy, Initiatives & Reporting

What Is Corporate Social Responsibility (CSR)?

Corporate Social Responsibility (CSR) means companies should not focus only on profit; they must also care about society, the environment, and people.

Simple definition: CSR is the responsibility of businesses to contribute to sustainable economic development while improving the quality of life of employees, society, and the environment.

Examples: Tata builds schools and hospitals. Infosys supports education. ITC promotes sustainable farming. These are

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Accounting Entries, Financial Statements & Key Ratios

Adjusted Trial Balance Format

Debit Accounts

  • Cash
  • Accounts Receivable
  • Interest Receivable
  • Notes Receivable (short-term)
  • Supplies
  • Prepaid Insurance
  • Prepaid Rent
  • Merchandise Inventory
  • Debt Investments (short-term)
  • Land
  • Buildings
  • Equipment
  • Vehicles
  • Patents
  • Copyrights
  • Trademarks
  • Goodwill
  • Dividends
  • Cost of Goods Sold
  • Wages Expense
  • Salaries Expense
  • Depreciation Expense—Buildings
  • Depreciation Expense—Equipment
  • Insurance Expense
  • Utilities Expense
  • Interest Expense
  • Supplies Expense
  • Rent Expense
  • Advertising Expense
  • Delivery Expense
  • Office
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Corrected VHDL Source: SRAM, CAM, State Machine

Corrected VHDL Source and Formatting

The following document preserves the original content while correcting spelling, capitalization, and HTML structure. All VHDL text has been kept but formatted for readability.

SRAM Read/Write Process

34
process(CLK, RST) begin
    if (RST = '0') then
        DATA <= (others => '0');
    elsif (rising_edge(CLK)) then
        if (WE = '1') then
            SRAM(to_integer(unsigned(ADDRESS))) <= unsigned(DATA);
        else
            s_data_read_reg <
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Software Requirements Engineering Principles and Practices

Software Requirements and Their Types

Software requirements are statements that describe what a system should do and how it should behave. They act as a foundation for designing, developing, and testing software.

Functional Requirements (FR)

Functional requirements define what the system must do by describing specific functions or tasks.

  • Examples:
    • “The system shall allow users to log in using a username and password.”
    • “The system shall generate monthly sales reports.”

Non-Functional Requirements

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Electronic Clipper Circuits and Rectifier Comparisons

1. Define Clipper, and explain clipping at two independent levels?

A.A clipper (also known as a limiter) is an electronic circuit used to remove or “clip” portions

Of a signal that exceed a certain threshold voltage level without distorting the remaining

Part of the waveform. Clippers are used in various applications, such as signal conditioning,

Waveform shaping, and protecting circuits from voltage spikes

Clipping at Two Independent Levels:


Clipping at two independent levels involves limiting the signal

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Food and Wine Pairings: Diverse Menu Selections

Shrimp, Cucumber, Lime & Vadouvan

2024 “Microcósmico” Macabeo – Bodegas Frontonio, Valdejalón (Aragón)

  • Grape: 100% Macabeo
  • Vinification: Native yeasts, fermented in concrete and neutral oak; short aging on lees.
  • Soil: Calcareous clay and slate.
  • Character: Bright and salty with lemon zest, fennel, and white flowers.
  • Why it works: The freshness and citrus touch lift the prawn and cucumber, while the minerality ties everything together.

Egg Yolk, Mushrooms, Spinach & Potato

2017 “Wachenheimer”

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