Front-End Programming Exam > Front-End Programming Videos > Learn React JS: Fundamentals for Front-End Developers (in Urdu) > React JS In Urdu ~ React States (Part 5 of 7)
React JS In Urdu ~ React States (Part 5 of 7) Video Lecture | Learn React JS: Fundamentals for Front-End Developers (in Urdu) - Front-End Programming
FAQs on React JS In Urdu ~ React States (Part 5 of 7) Video Lecture - Learn React JS: Fundamentals for Front-End Developers (in Urdu) - Front-End Programming
| 1. React JS کیا ہے؟ |  |
جواب: React JS ایک جاوا اسکرپٹ لائبریری ہے جو ویب ایپلیکیشن بنانے کے لئے استعمال ہوتی ہے۔ یہ یوزر انٹرفیس کو متحرک بنانے کے لئے ایک کمال ٹول کی طرح کام کرتی ہے۔
| 2. React States کیا ہوتے ہیں؟ | |
جواب: React میں States وہ متغیرات ہوتے ہیں جو کمپوننٹ کی حالت کو ممیز کرتے ہیں۔ یہ حالت کو اپ ڈیٹ کرتے ہیں اور کمپوننٹ کو دوبارہ رینڈر کرتے ہیں۔
| 3. React States کا استعمال کیوں ضروری ہوتا ہے؟ | |
جواب: React States استعمال کرنے کا اہم ترین فائدہ یہ ہے کہ یہ کمپوننٹ کی حالت کو ممیز کرتے ہیں اور یہ صرف اس حصے کو رینڈر کرتے ہیں جو اپ ڈیٹ ہوتا ہے۔ یہ ایک بہترین ترکیب ہے تاکہ کمپوننٹ زیادہ سرعت سے رینڈر نہ ہوں۔
| 4. React States کو کیسے استعمال کیا جاتا ہے؟ | |
جواب: React میں States کو useState() کسٹم هوك کے ذریعہ استعمال کیا جاتا ہے۔ اسکو استعمال کرنے کیلئے ، آپ کو React کی useState() کا ہوک استعمال کرنا ہوگا اور اس کو اپنے کمپوننٹ کے اندر استعمال کرنا ہوگا۔
| 5. React States اور Props میں کیا فرق ہے؟ | |
جواب: React States کمپوننٹ کی حالت کو ممیز کرتے ہیں جبکہ Props کمپوننٹ کے ایک کمال طریقے سے ڈیٹا کو کمپوننٹ میں پاس کرتے ہیں۔ States قابل تغییر ہوتے ہیں جبکہ Props غیر قابل تغییر ہوتے ہیں۔
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