JSON.stringify() chuyển object JavaScript thành chuỗi JSON, hữu ích khi gửi dữ liệu lên server.
Ví dụ
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8" /> <meta name="viewport" content="width=device-width, initial-scale=1.0" /> <title>Document</title> <style> body { font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif; } .sample { font-size: 18px; font-weight: 500; color: red; } </style> </head> <body> <h1>JSON.stringify() trong JavaScript</h1> <div class="sample"></div> <div style="font-weight: bold;" class="result"></div> <button class="Btn">NHẤN VÀO ĐÂY</button> <h3> Nhấn nút để chuyển object thành chuỗi JSON </h3> <script> let sampleEle = document.querySelector(".sample"); let resultEle = document.querySelector(".result"); let obj = {name: "Rohan",sports: ["Cricket", "Football"],Country: "India",}; sampleEle.innerHTML ="Name = " +obj.name +"<br>" +" Country = " +obj.Country + " <br>" +"sports = " +obj.sports; document.querySelector(".Btn").addEventListener("click", () => { resultEle.innerHTML = JSON.stringify(obj); }); </script> </body> </html>
Kết quả
Chuỗi JSON: {"name":"Rohan","sports":["Cricket","Football"],"Country":"India"}.