teleren/devto huggingface dataset:
useMemo Hook
Published: 2024-06-26 20:50:39

`useMemo` is a hook that allows you to memoize expensive calculations to avoid unnecessary re-computations on every render.

## Explanation of the Code
This React component, MemoTutorial, demonstrates how to use the useMemo hook to optimize performance by memoizing the result of a function that computes the longest name from a list of comments fetched from an API. Let's break down the code step by step.

<h4>1. Imports:</h4>

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/znzboc5t85l61xk4t91v.png)
- axios is used to make HTTP requests.
- useEffect, useState, and useMemo are hooks from React.

<h4>2. Component Definition:</h4>

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/38c55yh366v845f6wugx.png)
The MemoTutorial function is the React component.

<h4>3. State Variables:</h4>

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/6r66iqbca73yjsys9kky.png)
- `data`: Holds the comments fetched from the API.
- `toggle`: A boolean used to trigger re-renders.

<h4>4. Fetching Data:</h4>

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/x5kruu21p7lije1zluzr.png)
- `useEffect` is used to fetch data from the API when the component mounts.
- The empty dependency array ([]) ensures this effect runs only once.

<h4>5. Finding the Longest Name:</h4>

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/j59kttpd635o6lu2q8vi.png)
- This function iterates through the comments array to find and return the longest name.

<h4>6. Using useMemo:</h4>

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/4svdqhzbckotxo3u7iqw.png)
- useMemo memoizes the result of findLongestName(data).
- The function findLongestName(data) is called only when toggle changes.
- If toggle remains unchanged, the previously computed result is returned without recomputing.

<h5>7. Rendering the Component:</h5>

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/qf8gmtp6kfuejfntngdn.png)
- getLongestName is displayed in a div.
- A button toggles the toggle state.
- When toggle is true, "toggle" is displayed in an h1.

## Why Use useMemo?

<h4>1. Performance Optimization:</h4>

- It helps prevent expensive calculations from being performed on every render.
- In this example, findLongestName can be computationally expensive if the list of comments is large.

<h4>2. Dependencies:</h4>

- The result of the memoized function (findLongestName) is recalculated only when the specified dependencies ([toggle]) change.
- If the dependencies do not change, React returns the memoized value from the previous render.

<h4>3. Example Context:</h4>

- Here, useMemo ensures findLongestName(data) is only recalculated when toggle changes.
- Even if the component re-renders due to changes in other state or props, the memoized result is reused, avoiding redundant computations.
10 Slack emojis that developers should use
Tags: slack, productivity, development, softwaredevelopment
Published: 2024-06-26 20:50:24


![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/sryl4ncev6b8l54m8kqg.gif)

ALL of the companies that I've worked at so far used Slack. When I was entering the workforce, I always dreaded communicating in Slack - it was too formal! But that was until my coworkers and myself added emojis to our Slack workspace. It was a game-changer in our communication and overall tone.

So I compiled a list of the most used emojis our Slack workspace has: [emoji-pack-for-devs](https://pullnotifier.com/tools/emoji-pack-for-devs)


And on this post, I'll be highlighting the 10 best ones.

1. Lgtm
Best for instantly approving Pull Requests with 100 files changed!
![lgtm emoji](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/u5tlqf9iq5egvmfkmz08.jpg)

2. get-well-soon
Always nice to show your team you care!
![get well soon emoji](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/nj0gq8cjwm0qxasmn3mw.png)

3. smart
This is a well-known meme. Use it when a co-worker does something clever and witty
![smart gif](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/dd8i58gqtyc637uwefi9.gif)


4. plus1
Best emoji to use when you agree with someone's message
![plus1 emoji](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/zgxxuktqj3htbukismwy.png)

5. catjam
Ultimate vibes
![catjam emoji](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/cvees9wezdgdldxaha0k.gif)

6. leo-toast
Great for celebrating small and big wins
![leo-toast emoji](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/ti0mlaukjuyzjaeks29t.gif)

7. kek
This emoji perfectly expresses how funny the msg was :D
![kek emoji](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/syl9eydn7thagirwcdu2.gif)

8. merged
Used to indicate that your code has been merged and is on prod!
![merged emoji](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/ocxio60kvygldxlnsh3v.png)


9. thisisfine
How we feel every day as developers..
![this is fine emoji](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/07qvm0vrbjxhy52mwtz3.gif)

10. thankyou
Always nice to show gratitude towards your teammates :)
![thankyou emoji](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/scw0h1fpkcf380qv76hp.gif)



That wraps it up! 

You can view the full list here [emoji-pack-for-devs](https://pullnotifier.com/tools/emoji-pack-for-devs)
Also feel free to suggest new emojis and I'll try to add it in as soon as I can
🤯PEPE holders realize over $18 million in gains in ten days, wipe out nearly 4% in value
Published: 2024-06-26 20:50:05



🤑 PEPE Down Nearly 4%
Pepe (PEPE) is trading at $0.00001248, down almost 4% on Wednesday. The frog-themed meme coin has seen consistent profit-taking by traders over the past ten days.

📉 Selling Pressure
Consistent profit-taking increases selling pressure, likely pushing prices lower. On-chain data shows a spike in PEPE deposits to centralized exchanges, adding to the selling pressure.

💸 Profits Realized
PEPE holders realized over $18 million in profits from June 15 to 25, according to Santiment. Despite this, the meme coin has maintained seven-day gains of 14.31%.

🐋 Whale Activity
Whale wallet "0x387" transferred 1.1 trillion PEPE tokens ($14.2 million) to Binance. Analysts suspect these tokens will be sold. The wallet still holds $3.78 million worth of PEPE and has an estimated total loss of $1.7 million.

📊 Supply on Exchanges
PEPE supply on exchanges climbed to over 171 trillion on June 27, increasing nearly 1% in ten days. It remains to be seen if the meme coin will extend its losses.

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/e1bsfm6sno73fr0ygqtw.png)
🔥Bitcoin price wobbles at $61K as US gov sends 4K BTC to Coinbase
Published: 2024-06-26 20:49:48


📈 Bitcoin Back at $61,000
Bitcoin price returned to $61,000 on June 26, as news emerged of an incoming BTC sale by the U.S. government.

⚠️ State Selling Risk
BTC price faced uncertainty as coins from a U.S. government wallet were sent to Coinbase. According to Arkham, the total involved was 3,940 BTC ($240 million).

💡 Market Reaction
Trader Skew noted that the market reaction was subdued, with some shorts opening and longs closing out. The U.S. government wallet still held over 213,500 BTC ($13 billion).

🔍 Whales Front-running
William Clemente of Reflexivity suggested that recent selling by Bitcoin whales may have anticipated these government moves, explaining crypto's relative weakness to stocks.

📊 Bitcoin ETFs Recover
Bitcoin ETFs saw inflows of $31 million on June 25, breaking a 7-day losing streak. Popular trader Daan Crypto Trades had predicted this positive result, noting strong TWAP purchasing at Coinbase.

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/kohw9qgpc5nl8svofzle.png)
💥Bitcoin price must end June above $56.5K to defend uptrend — Analysis
Published: 2024-06-26 20:49:30


⚠️ Potential BTC Volatility
A deluge of potential BTC price volatility triggers is due this week, with participants eyeing the crucial support zone.

📉 Key Support Level
Bitcoin risks losing its uptrend if it ends June below $56,500, warns trading resource Material Indicators. BTC hit its lowest levels since early May this week, making May lows a critical level.

🔥 Market Pressure
Market pressure is expected to increase as weekly, monthly, and quarterly closes all occur on the same day. Bears gaining the upper hand would make $56,500 a vital defense level for buyers.

📊 Order Book Liquidity
Material Indicators' Keith Alan warned of potential "spoofing" as order book data from Binance showed strengthening bid liquidity between the current spot price and $55,000.

📈 RSI Rebound
Bitcoin traders are betting on a rebound, with the BTC/USD pair experiencing its most “overbought” conditions since August 2023. RSI levels acting as bottom signals leave room for growth if Bitcoin and ETH lead the way.

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/x6chhhqtvhk2a43t2p9m.png)
👀Here's How Bitcoin And Altcoins Will Behave 'Until Fed Cuts Rates,' According To Veteran Crypto Analyst
Published: 2024-06-26 20:49:13


📊 Bitcoin Dominance to Increase
Crypto analyst Benjamin Cowen predicts Bitcoin’s dominance will rise further despite recent market fluctuations.

📉 Recent Speculation
Cowen addressed speculation that Bitcoin dominance has peaked after a sharper BTC decline compared to altcoins recently. He believes Bitcoin dominance will continue to rise, based on historical patterns and current conditions.

🔍 Altcoin/BTC Pairs
Cowen notes Altcoin/BTC pairs are oscillators, currently above historical lows. He highlights that recent rallies from 0.36 to 0.40 do not signify an alt season, drawing parallels to a similar pattern in 2019.

📅 Cyclical Patterns
Significant altcoin rallies historically occur in post-halving years, potentially indicating 2025 for the next rally rather than 2024. Cowen’s analysis challenges the narrative that altcoins are poised for a breakout soon.

💡 Strategic Implications
Cowen advises that Altcoin/BTC pairs will decline until the Federal Reserve cuts rates or resumes quantitative easing. He cautions against premature anticipation, suggesting Bitcoin dominance will rise more than expected.

🚀 Future of Digital Assets Event
The influence of Bitcoin as an institutional asset class will be explored at Benzinga’s Future of Digital Assets event on Nov. 19.

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/x8jse0k7wv418uylqh29.png)
💥Here’s when Ethereum will reach $6,000, according to analysts
Published: 2024-06-26 20:48:53


🚀 Ethereum Up Nearly 50% in 2024
Ethereum (ETH) has surged nearly 50% since January 1, surpassing $4,000 in March, but has faced an 11% decline over the past 30 days.

📈 Optimistic Forecast
Crypto analyst degentrading predicts Ethereum will reach $6,000 by September 2024, despite skepticism from Andrew Kang of Mechanism Capital. Kang forecasts a downtrend for the ETHBTC ratio.

💡 Bullish Sentiment
Degentrading's optimism is driven by a $5 billion increase in CME open interest and Ethereum's relative illiquidity compared to Bitcoin. An influx of $3-4 billion could significantly boost Ethereum’s price. The upcoming launch of Ethereum ETFs and the potential conversion of Grayscale’s Ethereum Trust (ETHE) into an ETF also support a bullish outlook.

🔍 Skeptical View
Andrew Kang highlights challenges such as the decline of prime brokers like Genesis and the involvement of large funds engaging in basis trades. These factors could limit the anticipated capital inflows.

⚖️ Market at a Pivotal Point
At press time, Ethereum is trading at $3,356.09, down 0.86% in the last 24 hours. The market faces contrasting views from analysts, with degentrading highlighting potential inflows and positive sentiment, while Kang underscores challenges and uncertainties.

📊 Investor Considerations
Investors should weigh these perspectives and monitor market developments closely as Ethereum navigates the coming months.

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/ilk1uofrdqj4m1d44fre.png)
🚀Bitcoin price analysis
Published: 2024-06-26 20:48:32


Bitcoin bulls are striving to keep the price above the crucial support level of $56,552.

🐻 Bears Push Below $60,000
On June 24, bears pushed the price below $60,000, but the long tail on the candlestick indicates strong buying at lower levels. Expect bulls to stay active in the $60,000 to $56,552 zone for the next few days. If they fail to defend this support, the BTC/USDT pair could plummet to $50,000.

📈 Key Resistance Level
The 20-day exponential moving average (EMA) at $64,883 is the critical resistance level to watch on the upside. A break and close above this level will suggest the bears are losing control, and the pair may then rally towards $70,000.

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/p0myhu4xxy1er7x1mf1z.png)
🔥Ether price analysis
Published: 2024-06-26 20:48:17


📉 Ether Slips Toward $3,000 Support
Ether (ETH) has been gradually declining towards the key support level at $3,000. Bulls bought the dip to $3,240 on June 24 but are struggling to push the price to the 20-day EMA ($3,506).

🐻 Bears Eye $3,200
If the price turns down from the current level, bears will attempt to sink it below $3,200. If successful, the ETH/USDT pair could plummet to the psychological level of $3,000. Buyers are expected to fiercely defend the $3,000 to $2,850 zone.

📈 Upside Resistance
On the upside, bulls need to push and sustain the price above the 20-day EMA to signal a reduction in selling pressure. This move would clear the path for a potential rally to $3,730.

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/tlj4iugnd6tzxtgva5sk.png)
🚀Solana price analysis
Published: 2024-06-26 20:48:00



📈 Solana Recovers to $137
Solana (SOL) rebounded sharply from $122 on June 24 and re-entered the descending channel pattern on June 25.

🐻 Bears Target 20-day EMA
Bears will try to halt the relief rally at the 20-day EMA ($143). If the price turns down sharply from this level, the SOL/USDT pair could tumble to crucial support at $116. Bulls are expected to defend this level fiercely, as a break below it could lead to a drop to $100.

📊 Potential Upside
If bulls push the price above the 20-day EMA, it will indicate reducing selling pressure. The pair may then climb to the channel’s resistance line. A break above the channel would shift the advantage in favor of the bulls.

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/q0vi761w3dlicqtrrtgd.png)
🚀XRP price analysis
Published: 2024-06-26 20:47:43


📉 XRP Bounces to $0.47
XRP bounced off the $0.46 support on June 24, but bulls are struggling to extend the recovery.

🐻 Bears in Control
Both moving averages are sloping down, and the relative strength index (RSI) is in negative territory, indicating bears are in control. Sellers will again try to push the price below $0.46. If successful, the XRP/USDT pair could slump to the next major support at $0.41.

🛡️ Defending Key Support
Buyers are expected to vigorously defend the $0.41 to $0.46 zone, as a break below it could sink the pair to $0.35. The first sign of strength will be a break and close above the 20-day EMA, potentially leading to a rally to $0.52.

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/br13g9ane0wd1t83yzhu.png)
💥Dogecoin price analysis
Published: 2024-06-26 20:47:25


🐕 Dogecoin Rebounds to $0.12
Dogecoin (DOGE) broke and closed below the $0.12 support on June 24, but bulls started a recovery and pushed the price back above this level on June 25.

📈 Key Resistance Level
Bulls need to propel the price above the 20-day EMA ($0.13) to signal a robust recovery. If successful, the DOGE/USDT pair could rise to the 50-day simple moving average (SMA) at $0.15, suggesting that the range-bound action between $0.12 and $0.18 may continue for a few more days.

🐻 Bearish Scenario
If the price turns down sharply and breaks below $0.12, it will indicate that bears are in control. This could start a downward move toward $0.10, where bulls will again attempt to halt the decline.

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/br9li537h2o18yra6e8n.png)
💵Shiba Inu price analysis
Published: 2024-06-26 20:47:01



📉 Shiba Inu (SHIB) Struggles Below $0.000017
Shiba Inu (SHIB) plunged below the 78.6% Fibonacci retracement level of $0.000017 on June 24, firmly placing bears in control.

🐻 Bearish Momentum
Despite an attempted recovery on June 25, bullish momentum remains weak. Bears are poised to push the price below $0.000017 again. A successful breach could lead SHIB/USDT to decline towards $0.000014 and potentially $0.000010.

📈 Potential Recovery
For buyers to regain control, they must quickly propel the price back above the breakdown level of $0.000020. This move could pave the way for a rally towards the 50-day SMA ($0.000023).

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/ionm15yg2c6336ffh4jg.png)
🚀Avalanche price analysis
Published: 2024-06-26 20:46:42


📉 Avalanche (AVAX) Faces Downtrend
Avalanche (AVAX) resumed its downtrend after breaking below the strong support at $29 on June 17.

🐻 Bearish Indicators
Downward sloping moving averages and an RSI near oversold territory indicate bears are currently dominant. Bulls are attempting a relief rally, likely encountering resistance at the 20-day EMA ($28.76). If the price reverses from this level, bears may target a drop towards $20.

📈 Potential Reversal
This bearish outlook could change if bulls manage to push the price above $29. A move above this level could see AVAX/USDT rise towards $33, signaling rejection of the breakdown below $29.

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/ii5krdnmj49r3rj90s3u.png)
🤯$6.6B in Bitcoin Options and $3.4B in Ethereum Options Expiring Soon, Will Prices Hit Max Pain Point?
Published: 2024-06-26 20:46:25


📊 Bitcoin and Ethereum Options Expiry Insight
This week, crypto traders are closely monitoring the upcoming options expiry for Bitcoin and Ethereum scheduled for Friday, June 28. A substantial $6.6 billion in Bitcoin options and $3.5 billion in Ethereum options are set to expire, heightening market volatility.

🔍 Bitcoin Options Data
Bitcoin options expiring on June 28 amount to $6.6 billion, with a bullish put/call ratio of 0.47. Deribit data shows current open interest at $108,239.60, consisting of 71,651.40 call options and 36,588.20 put options. Bitcoin's max pain point stands at $57,000, with recent price movements approaching this level after fluctuating between $58,000 and above $61,000 earlier this week.

🌀 Ethereum Options Overview
Ethereum options expiring the same day total $3.54 billion, with a put/call ratio of 0.58. Open interest is at 1,049,020.00, comprising 662,453.00 call options and 662,453.00 put options. Ethereum's max pain point is at $3,100, contrasting with its current trading price of $3,382 and a 4.7% weekly decline.

📉 Max Pain Dynamics
Max pain points signify the level where most options expire worthless, influencing market movements as the expiry nears. Traders are closely observing whether Bitcoin and Ethereum prices align with these critical levels.

📈 BTC and ETH Developments
Bitcoin is showing signs of bottom formation post a 15% correction from its peak, with reduced leverage and declining open interest and funding rates ahead of the expiry. Meanwhile, Ethereum anticipates the launch of spot ETFs next week, enhancing investor sentiment with firms like VanEck preparing for this milestone and offering zero trading fees through late 2025.

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/940ik2z7vpvz7oli1qam.png)
🤔 When Is Bitcoin (BTC) Price Likely To Reach $100,000?
Published: 2024-06-26 20:46:04


📉 Bitcoin and Ethereum in Recent Decline
Recent weeks have seen Bitcoin and Ethereum experience significant declines, sparking concerns among investors. Despite a bullish start to the year, both leading cryptocurrencies have faced considerable selling pressure in June. This has raised questions about whether the current correction presents a buying opportunity or marks the beginning of a more prolonged downturn.

🔮 Long-Term Outlook for Bitcoin and Ethereum
Looking ahead to 2024, the long-term outlook for Bitcoin and Ethereum remains uncertain but pivotal. The recent Bitcoin halving in April 2024 has altered supply dynamics, potentially influencing future price trajectories. However, predicting Bitcoin's price in 5 years is inherently challenging.
The approval of spot Bitcoin ETFs in the US has been a significant catalyst, initially propelling Bitcoin's price above $70,000 in Q1. Continued institutional adoption, facilitated by easier market entry, could sustain a bullish trend. Yet, regulatory scrutiny and macroeconomic factors like Federal Reserve policies on interest rates may pose challenges.

📈 Bitcoin's Near-Term Prospects
Despite recent corrections bringing Bitcoin to around $60,000 in June, analysts foresee a potential bull run pushing Bitcoin above $100,000 in 2024. Predictions range widely, with some suggesting a $1 million valuation in 5 years, while others anticipate more moderate growth.

🔄 Potential Rebound in July
Bitcoin bulls recently defended the $60,000 support level, pushing the price back above $61,000 ahead of the US session. With the Relative Strength Index (RSI) recovering from oversold levels, traders are increasing long positions in anticipation of further gains.

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/6fgliir8h281yrouypzd.png)
💥Dogwifhat price breakout signals potential rally above $2.1 resistance
Published: 2024-06-26 20:45:45


📈 Dogwifhat (WIF) Breaks Out and Shows Potential
Dogwifhat (WIF) price surged above $2 on Wednesday after breaking out from a descending trendline on Tuesday. On-chain data reveals that the largest whale has accumulated 2.3 million tokens valued at $4.67 million, signaling potential for an upcoming rally.

🐋 Whale Accumulation
According to Lookonchain, the largest WIF holder acquired 2.3 million tokens worth $4.67 million, adding to their existing holdings of 23.39 million WIF tokens valued at $49.6 million, with a total profit of $83 million. Additionally, the whale spent 86,738.1 Solana tokens, worth $8.65 million, in a single trade to purchase 17.22 million WIF tokens.

📉 Technical Outlook
The breakout above the descending trendline, drawn from multiple swing highs between June 5 and June 25, sets a bullish tone for WIF. If the price sustains above the $2.10 daily resistance level and finds support at the trendline, it could potentially rally by 25% to retest its recent high of $2.64 from June 17.

📊 Indicators and Momentum
The Relative Strength Index (RSI) on the daily chart is rebounding from oversold levels and aims to cross above the neutral 50 mark, indicating increasing bullish momentum. Meanwhile, the Awesome Oscillator (AO) remains below the zero line, suggesting potential for further upward movement. Sustained positions above these key levels would bolster the ongoing recovery rally.

⚠️ Risk Factors
Despite bullish indicators, a daily candlestick close below $1.54 could invalidate the bullish scenario by forming a lower low on the daily chart. This scenario might lead to a 35% decline, revisiting the March 5 low at $1.

The outlook for Dogwifhat (WIF) appears promising with strong on-chain accumulation and favorable technical signals, but investors should monitor key support and resistance levels closely for confirmation of further upside potential.

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/jz085onfm9rt6rn9h0c1.png)