variable
1. What is a variable
A variable is an area of memory used to store data
2, the naming rules of variables
3. How to use variables
var variable name = (assignment) 10
1 <!DOCTYPE html> 2 <html lang="en"> 3 <head> 4 <meta charset="UTF-8"> 5 <title>Document</title> 6 <script> 7 var name='name'; 8 var age=10; 9 var gender='male' 10 console.log(name); 11 console.log(age); 12 console.log(gender); 13 </script> 14 </head> 15 <body> 16 17 </body> 18 </html>