Vấn đề viết hoa một chuỗi khá phổ biến và đã được thảo luận nhiều lần. Nhưng đôi khi, chúng ta có thể gặp một vấn đề như thế này, trong đó chúng ta cần chuyển đổi ký tự đầu tiên của chuỗi thành chữ thường. Hãy để chúng tôi thảo luận về những cách nhất định trong đó điều này có thể được thực hiện. Show
Phương pháp số 1. Sử dụng cắt chuỗi + Lower() Tác vụ này có thể dễ dàng được thực hiện bằng cách sử dụng phương thức Lower để viết thường các ký tự được cung cấp cho nó và cắt có thể được sử dụng để thêm chuỗi còn lại sau ký tự đầu tiên viết thường. Python3
The original string is : GeeksforGeeks The string after lowercasing initial character : geeksforGeeks0 The original string is : GeeksforGeeks The string after lowercasing initial character : geeksforGeeks1
The original string is : GeeksforGeeks The string after lowercasing initial character : geeksforGeeks2 The original string is : GeeksforGeeks The string after lowercasing initial character : geeksforGeeks3 The original string is : GeeksforGeeks The string after lowercasing initial character : geeksforGeeks4_______0_______5 The original string is : GeeksforGeeks The string after lowercasing initial character : geeksforGeeks6 The original string is : GeeksforGeeks The string after lowercasing initial character : geeksforGeeks7 The original string is : GeeksforGeeks The string after lowercasing initial character : geeksforGeeks8
The original string is : GeeksforGeeks The string after lowercasing initial character : geeksforGeeks1 The original string is : GeeksforGeeks The string after lowercasing initial character : geeksforGeeks0 The original string is : GeeksforGeeks The string after lowercasing initial character : geeksforGeeks3_______0_______4 The original string is : GeeksforGeeks The string after lowercasing initial character : geeksforGeeks5 The original string is : GeeksforGeeks The string after lowercasing initial character : geeksforGeeks6 The original string is : GeeksforGeeks The string after lowercasing initial character : geeksforGeeks3 The original string is : GeeksforGeeks The string after lowercasing initial character : geeksforGeeks8 The original string is : GeeksforGeeks The string after lowercasing initial character : geeksforGeeks9
The original string is : GeeksforGeeks The string after lowercasing initial character : geeksforGeeks0 The original string is : GeeksforGeeks The string after lowercasing initial character : geeksforGeeks3 The original string is : GeeksforGeeks The string after lowercasing initial character : geeksforGeeks4_______0_______3 The original string is : GeeksforGeeks The string after lowercasing initial character : geeksforGeeks6 The original string is : GeeksforGeeks The string after lowercasing initial character : geeksforGeeks7 The original string is : GeeksforGeeks The string after lowercasing initial character : geeksforGeeks6 đầu ra. The original string is : GeeksforGeeks The string after lowercasing initial character : geeksforGeeks Thời gian phức tạp. Trên) Phương pháp #2. Sử dụng lambda + cắt chuỗi + Lower() Công thức của hàm lambda phải được thêm vào nếu chúng ta cần thực hiện tác vụ xử lý cả giá trị Không có giá trị hoặc chuỗi rỗng và điều này trở nên cần thiết để xử lý các trường hợp cạnh. Python3
The original string is : GeeksforGeeks The string after lowercasing initial character : geeksforGeeks9
The original string is : GeeksforGeeks The string after lowercasing initial character : geeksforGeeks0 The original string is : GeeksforGeeks The string after lowercasing initial character : geeksforGeeks1
The original string is : GeeksforGeeks The string after lowercasing initial character : geeksforGeeks2 The original string is : GeeksforGeeks The string after lowercasing initial character : geeksforGeeks3 The original string is : GeeksforGeeks The string after lowercasing initial character : geeksforGeeks4_______0_______5 The original string is : GeeksforGeeks The string after lowercasing initial character : geeksforGeeks6 The original string is : GeeksforGeeks The string after lowercasing initial character : geeksforGeeks7 The original string is : GeeksforGeeks The string after lowercasing initial character : geeksforGeeks8
The original string is : GeeksforGeeks The string after lowercasing initial character : geeksforGeeks9
The original string is : GeeksforGeeks The string after lowercasing initial character : geeksforGeeks8 The original string is : GeeksforGeeks The string after lowercasing initial character : geeksforGeeks5_______0_______6
The original string is : GeeksforGeeks The string after lowercasing initial character : geeksforGeeks3 The original string is : GeeksforGeeks The string after lowercasing initial character : geeksforGeeks8 The original string is : GeeksforGeeks The string after lowercasing initial character : geeksforGeeks9 # Lowercase first character of String3 test_str# Lowercase first character of String5 # Lowercase first character of String6
The original string is : GeeksforGeeks The string after lowercasing initial character : geeksforGeeks0 The original string is : GeeksforGeeks The string after lowercasing initial character : geeksforGeeks3 The original string is : GeeksforGeeks The string after lowercasing initial character : geeksforGeeks4_______0_______3 The original string is : GeeksforGeeks The string after lowercasing initial character : geeksforGeeks6 The original string is : GeeksforGeeks The string after lowercasing initial character : geeksforGeeks7 # Using lower() + string slicing3đầu ra. The original string is : GeeksforGeeks The string after lowercasing initial character : geeksforGeeks Thời gian phức tạp. Trên) Phương pháp #3. Sử dụng phương thức thay thế () mà không cần cắt Python3
The original string is : GeeksforGeeks The string after lowercasing initial character : geeksforGeeks0 The original string is : GeeksforGeeks The string after lowercasing initial character : geeksforGeeks1
The original string is : GeeksforGeeks The string after lowercasing initial character : geeksforGeeks2 The original string is : GeeksforGeeks The string after lowercasing initial character : geeksforGeeks3 The original string is : GeeksforGeeks The string after lowercasing initial character : geeksforGeeks4_______0_______5 The original string is : GeeksforGeeks The string after lowercasing initial character : geeksforGeeks6 The original string is : GeeksforGeeks The string after lowercasing initial character : geeksforGeeks7 The original string is : GeeksforGeeks The string after lowercasing initial character : geeksforGeeks8
The original string is : GeeksforGeeks The string after lowercasing initial character : geeksforGeeks0_______139_______9 The original string is : GeeksforGeeks The string after lowercasing initial character : geeksforGeeks4 test_str1The original string is : GeeksforGeeks The string after lowercasing initial character : geeksforGeeks4 test_str3The original string is : GeeksforGeeks The string after lowercasing initial character : geeksforGeeks8_______140_______5
The original string is : GeeksforGeeks The string after lowercasing initial character : geeksforGeeks0 The original string is : GeeksforGeeks The string after lowercasing initial character : geeksforGeeks3 The original string is : GeeksforGeeks The string after lowercasing initial character : geeksforGeeks4_______0_______3 The original string is : GeeksforGeeks The string after lowercasing initial character : geeksforGeeks6 The original string is : GeeksforGeeks The string after lowercasing initial character : geeksforGeeks7 The original string is : GeeksforGeeks The string after lowercasing initial character : geeksforGeeks8 Đầu ra The original string is : GeeksforGeeks The string after lowercasing initial character : geeksforGeeks Thời gian phức tạp. Trên) Phương pháp #4. Sử dụng phương thức cắt lát và chỉ mục () Python3
The original string is : GeeksforGeeks The string after lowercasing initial character : geeksforGeeks0 The original string is : GeeksforGeeks The string after lowercasing initial character : geeksforGeeks1
The original string is : GeeksforGeeks The string after lowercasing initial character : geeksforGeeks2 The original string is : GeeksforGeeks The string after lowercasing initial character : geeksforGeeks3 The original string is : GeeksforGeeks The string after lowercasing initial character : geeksforGeeks4_______0_______5 The original string is : GeeksforGeeks The string after lowercasing initial character : geeksforGeeks6 The original string is : GeeksforGeeks The string after lowercasing initial character : geeksforGeeks7 The original string is : GeeksforGeeks The string after lowercasing initial character : geeksforGeeks8
The original string is : GeeksforGeeks The string after lowercasing initial character : geeksforGeeks16_______0_______0 The original string is : GeeksforGeeks The string after lowercasing initial character : geeksforGeeks18 The original string is : GeeksforGeeks The string after lowercasing initial character : geeksforGeeks19_______0_______0 The original string is : GeeksforGeeks The string after lowercasing initial character : geeksforGeeks21 The original string is : GeeksforGeeks The string after lowercasing initial character : geeksforGeeks1 The original string is : GeeksforGeeks The string after lowercasing initial character : geeksforGeeks0 The original string is : GeeksforGeeks The string after lowercasing initial character : geeksforGeeks24_______0_______4 The original string is : GeeksforGeeks The string after lowercasing initial character : geeksforGeeks26 The original string is : GeeksforGeeks The string after lowercasing initial character : geeksforGeeks6 The original string is : GeeksforGeeks The string after lowercasing initial character : geeksforGeeks3 The original string is : GeeksforGeeks The string after lowercasing initial character : geeksforGeeks8_______0_______9 The original string is : GeeksforGeeks The string after lowercasing initial character : geeksforGeeks0 The original string is : GeeksforGeeks The string after lowercasing initial character : geeksforGeeks3 The original string is : GeeksforGeeks The string after lowercasing initial character : geeksforGeeks4_______0_______3 The original string is : GeeksforGeeks The string after lowercasing initial character : geeksforGeeks6 The original string is : GeeksforGeeks The string after lowercasing initial character : geeksforGeeks7 The original string is : GeeksforGeeks The string after lowercasing initial character : geeksforGeeks6 Đầu ra The original string is : GeeksforGeeks The string after lowercasing initial character : geeksforGeeks Thời gian phức tạp. Trên) Phương pháp #5. Sử dụng các hàm ord(),chr() Python3
The original string is : GeeksforGeeks The string after lowercasing initial character : geeksforGeeks0 The original string is : GeeksforGeeks The string after lowercasing initial character : geeksforGeeks1
The original string is : GeeksforGeeks The string after lowercasing initial character : geeksforGeeks2 The original string is : GeeksforGeeks The string after lowercasing initial character : geeksforGeeks3 The original string is : GeeksforGeeks The string after lowercasing initial character : geeksforGeeks4_______0_______5 The original string is : GeeksforGeeks The string after lowercasing initial character : geeksforGeeks6 The original string is : GeeksforGeeks The string after lowercasing initial character : geeksforGeeks7 The original string is : GeeksforGeeks The string after lowercasing initial character : geeksforGeeks8 The original string is : GeeksforGeeks The string after lowercasing initial character : geeksforGeeks51 The original string is : GeeksforGeeks The string after lowercasing initial character : geeksforGeeks0 The original string is : GeeksforGeeks The string after lowercasing initial character : geeksforGeeks53
The original string is : GeeksforGeeks The string after lowercasing initial character : geeksforGeeks4 The original string is : GeeksforGeeks The string after lowercasing initial character : geeksforGeeks56 The original string is : GeeksforGeeks The string after lowercasing initial character : geeksforGeeks57 The original string is : GeeksforGeeks The string after lowercasing initial character : geeksforGeeks4 The original string is : GeeksforGeeks The string after lowercasing initial character : geeksforGeeks59 The original string is : GeeksforGeeks The string after lowercasing initial character : geeksforGeeks0 The original string is : GeeksforGeeks The string after lowercasing initial character : geeksforGeeks56 The original string is : GeeksforGeeks The string after lowercasing initial character : geeksforGeeks4 The original string is : GeeksforGeeks The string after lowercasing initial character : geeksforGeeks63 The original string is : GeeksforGeeks The string after lowercasing initial character : geeksforGeeks64 The original string is : GeeksforGeeks The string after lowercasing initial character : geeksforGeeks65 The original string is : GeeksforGeeks The string after lowercasing initial character : geeksforGeeks51 The original string is : GeeksforGeeks The string after lowercasing initial character : geeksforGeeks0 The original string is : GeeksforGeeks The string after lowercasing initial character : geeksforGeeks68 The original string is : GeeksforGeeks The string after lowercasing initial character : geeksforGeeks4 The original string is : GeeksforGeeks The string after lowercasing initial character : geeksforGeeks56 The original string is : GeeksforGeeks The string after lowercasing initial character : geeksforGeeks57 The original string is : GeeksforGeeks The string after lowercasing initial character : geeksforGeeks4 The original string is : GeeksforGeeks The string after lowercasing initial character : geeksforGeeks73 The original string is : GeeksforGeeks The string after lowercasing initial character : geeksforGeeks6 The original string is : GeeksforGeeks The string after lowercasing initial character : geeksforGeeks75 test_str5
Làm cách nào để thay đổi tất cả chữ hoa thành chữ thường trừ chữ cái đầu tiên trong JavaScript?Phương thức toLowerCase chuyển đổi một chuỗi thành chữ thường . Phương thức toLowerCase() không nhận bất kỳ tham số nào. Các chuỗi trong JavaScript là bất biến. Phương thức toLowerCase() chuyển đổi chuỗi được chỉ định thành một chuỗi mới chỉ bao gồm các chữ cái viết thường và trả về giá trị đó.
Làm cách nào để tạo một chuỗi chữ thường trong JavaScript?Phương thức toLowerCase() trả về giá trị của chuỗi được chuyển thành chữ thường. toLowerCase() không ảnh hưởng đến giá trị của chính chuỗi str.
Làm cách nào để viết hoa chữ cái đầu tiên và viết hoa phần còn lại nhỏ trong JavaScript?Để viết hoa ký tự đầu tiên của chuỗi, chúng ta có thể dùng hàm charAt() để tách ký tự đầu tiên rồi dùng hàm toUpperCase() để viết hoa ký tự đầu tiên. Now, we would get the remaining characters of the string using the slice() function.
Làm cách nào để kiểm tra xem chữ cái đầu tiên có phải là chữ hoa JavaScript không?toUpperCase()
. Ghi chú. chuỗi. charAt(index) được ưu tiên hơn string[index] (ký hiệu dấu ngoặc). |
