11.23. HTML script

11.23.1. HTML

</div>

11.23.3. JavaScript experience (from the javascript tutorial of this site) ¶

JavaScript instance code:

JavaScript can be output directly in HTML: ¶

document.write("
This is a paragraph.
");

JavaScript event response: ¶

Click me!
    
 
 JavaScript handles HTML styles:  ¶  
 
 
 
document.getElementById("demo").style.color="#ff0000";
 
 
 
  
 
  11.23.4.  HTML script label  ¶  
 
     
 
 
 
 Label 
 
 
 
 Description 
 
 
 
 
 
 
 
 < script > 
 
 
 
 Client script is defined 
 
 
 
 
 
 < noscript > 
 
 
 
 Defines text that does not support script browser output 
 
 
 
 
 
 

 
                    
                
                

                    

                        

                            
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                            11.23. HTML script 
                        
                    
                
            
        
        

            

    
        

            

                

                    
                        
                        
                            
Principles and Applications of WebGIS 
                        
                        
                             37
                        
                    
                    
                        

                            
 
 
 
                        

                    
                
                

                    
                        

                            
                                
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Principles, Technologies, and Methods of Geographic Information Systems 
                        
                        
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 In recent years, Geographic Information Systems (GIS) have undergone rapid development in both theoretical and practical dimensions. GIS has been widely applied for modeling and decision-making support across various fields such as urban management, regional planning, and environmental remediation, establishing geographic information as a vital component of the information era. The introduction of the “Digital Earth” concept has further accelerated the advancement of GIS, which serves as its technical foundation. Concurrently, scholars have been dedicated to theoretical research in areas like spatial cognition, spatial data uncertainty, and the formalization of spatial relationships. This reflects the dual nature of GIS as both an applied technology and an academic discipline, with the two aspects forming a mutually reinforcing cycle of progress. 
 
 
                        

                    
                
                

                    
                        

                            
                                
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                                    18. Geographic Information System and Society 
                                    
                                        3
                                    
                                
                            
                        
                    
                        

                            
                                
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