💵 FOR Ukraine:
🔗 https://send.monobank.ua/jar/6DbLp37hre
💳 5375 4112 1187 1350

🌎 FOR ALL DONATS:

💵 PayPal: luckystudydanit@gmail.com
💵 SWIFT code: UNJSUAUKXXX

My profile with reports after closing fundraiser :
https://www.facebook.com/volunt2erua/

also all reports in our 🚀 channel:
https://t.me/toxicc_squad

🚳 Interview Questions: Ajax implementation

#js #interview #ajax

Implement an ajax request function that supports Promise:

🍣Send a request using the XMLHttpRequest object

🍛Initialize the open method, configure the request method and url

🍷Add onload and onerror callback functions

🧉onload determines whether the status code is within the range of 200–300 resolve, otherwise reject

🫘onerror directly reject

🥧After the request is successful, resolve returns response, and after failure, reject reports an error.

🥟Support options to configure request parameters and request body

🍱Returns a Promise object, which can be processed externally using then/catch

Analysis: Promise is used to encapsulate asynchronous ajax requests and achieve a synchronous programming style.

🚳 Interview Questions: JSONP cross-domain implementation

#js #interview #jsonp

Analysis: Create the script node script.src, set the callback function callbackName, parse the parameters and splice the URL, dynamically insert it into the body to implement JSONP cross-domain request, and return the Promise interface.

📵 Interview Questions: Implement deep cloning

#js #interview #deepClone

Analysis: Recursively implement deep cloning of objects and arrays, returning basic types directly, and reference types recursively call deep cloning hierarchically.

Hello, friends!
As you can see, I'm a Ukrainian software engineer who tries to do volunteer fundraisers to support the Armed Forces of Ukraine. Sometimes it takes a lot of time and I am not able to maintain this channel for you. Please help me close these fundraisers because without the Ukrainian army there will be nothing Ukrainian. Thank you very much!

💵 FOR Ukraine:
https://send.monobank.ua/jar/5TvPibajtR
5375 4114 1222 8582

🌎 FOR ALL DONATS:

💵 SWIFT code: UNJSUAUKXXX

💵 PayPal: luckystudydanit@gmail.com

My profile with reports after closing fundraiser :
https://www.facebook.com/volunt2erua/

also all reports in our 🚀 channel:
https://t.me/toxicc_squad

🚱 Interview Questions: Function currying

#js #interview #deepClone #patterns

Analysis: Currying of the add function is achieved by recursively calling a function that continues to accept parameters.

🚳 Interview Questions: Implement promise.all method

#js #interview #promise

Analysis: Use the Promise.all principle to synchronize the Promise state through the counter and result array.