Yuqoridagi shartli ifodani bir ko'rganda ishlamaydi deb o'ylash tabiiy. Chunki Qanday qilib bir o'zgaruvchi bir vaqtda 3 xil qiymatga ega bo'lishi mumkin?
Bu albatta mumkin emas, agar o'zgaruvchi primitiv bo'lsa! Shuning uchun o'zgaruvchini dinamik ravishda primitiv qiymat qaytaruvchi obyektga aylantirish yechim bo'ladi.
Dinamik ravishda primitiv qiymat qaytarish
Buning uchun biz obyektimizga"valueOf" yoki "toString" metodlarini qo'shishimiz kerak bo'ladi. "[Symbol.toPrimitive]" orqali qo'shganimizda prioriteti ancha baland bo'ladi. Ya'ni, agar obyektda 3 ta metod ham bo'lsa JS interpretator
Yuqoridagi shartli ifodani bir ko'rganda ishlamaydi deb o'ylash tabiiy. Chunki Qanday qilib bir o'zgaruvchi bir vaqtda 3 xil qiymatga ega bo'lishi mumkin?
Bu albatta mumkin emas, agar o'zgaruvchi primitiv bo'lsa! Shuning uchun o'zgaruvchini dinamik ravishda primitiv qiymat qaytaruvchi obyektga aylantirish yechim bo'ladi.
Dinamik ravishda primitiv qiymat qaytarish
Buning uchun biz obyektimizga"valueOf" yoki "toString" metodlarini qo'shishimiz kerak bo'ladi. "[Symbol.toPrimitive]" orqali qo'shganimizda prioriteti ancha baland bo'ladi. Ya'ni, agar obyektda 3 ta metod ham bo'lsa JS interpretator
Some messages aren’t supposed to last forever. There are some Telegram groups and conversations where it’s best if messages are automatically deleted in a day or a week. Here’s how to auto-delete messages in any Telegram chat. You can enable the auto-delete feature on a per-chat basis. It works for both one-on-one conversations and group chats. Previously, you needed to use the Secret Chat feature to automatically delete messages after a set time. At the time of writing, you can choose to automatically delete messages after a day or a week. Telegram starts the timer once they are sent, not after they are read. This won’t affect the messages that were sent before enabling the feature.
How Does Telegram Make Money?
Telegram is a free app and runs on donations. According to a blog on the telegram: We believe in fast and secure messaging that is also 100% free. Pavel Durov, who shares our vision, supplied Telegram with a generous donation, so we have quite enough money for the time being. If Telegram runs out, we will introduce non-essential paid options to support the infrastructure and finance developer salaries. But making profits will never be an end-goal for Telegram.
