Several ways to create objects
The first: literal
The second: through the constructor
The third type: Object.create
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>CreatObject</title> </head> <body> </ body > < script > // The first way var o1 = {name: " o1 " }; var o2 = new Object({name: " o2 " }); // The second way var A = function ( name) { this .name = name; }; var o3 = new A( " o3 " ); // The third way var c = {name: " c " }; var o4 = Object.create(c); console.log("o1",o1); console.log("o2",o2); console.log("A",A); console.log("o3",o3); console.log("o4",o4); </script> </html>
ky can see that the structure of the objects created by the first two methods is the same, and the structure of the object created by the third method Object.create is different from the others. He first creates a {}, and then points the __proto__ of this object to the Input parameters, note that the reference is passed in, if we change o4.name then c.name also changes