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ليه React بتستخدم Keys في الـ Lists؟ 🤔
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عمرك سألت نفسك ليه React دايمًا بتطلب منك تضيف Key لكل عنصر في List؟
وليه لازم نهتم به وإيه اللي ممكن يحصل لو ما ضفنا الـ key؟

السؤال ده منتشر بشكل كبير في أي مقابلة عمل تخص ريأكت، والسؤال بسيط لكن هو في الحقيقة موضوع مهم جدًا وبيفرق في الأداء بشكل كبير...

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Create: 2025-05-12
Last Update: 2025-06-19 13:59:29

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The Singapore stock market has alternated between positive and negative finishes through the last five trading days since the end of the two-day winning streak in which it had added more than a dozen points or 0.4 percent. The Straits Times Index now sits just above the 3,060-point plateau and it's likely to see a narrow trading range on Monday.

If riding a bucking bronco is your idea of fun, you’re going to love what the stock market has in store. Consider this past week’s ride a preview.The week’s action didn’t look like much, if you didn’t know better. The Dow Jones Industrial Average rose 213.12 points or 0.6%, while the S&P 500 advanced 0.5%, and the Nasdaq Composite ended little changed.