ee.Image.constant

 // Create a constant image, where every pixel has bands of the same value. 
 var 
  
 image1 
  
 = 
  
 ee 
 . 
 Image 
 . 
 constant 
 ( 
 1 
 ); 
 Map 
 . 
 addLayer 
 ( 
 image1 
 , 
  
 null 
 , 
  
 '1' 
 ); 
 // Image (1 band) 
 // type: Image 
 // bands: List (1 element) 
 // 0: "constant", int ∈ [1, 1], EPSG:4326 
 print 
 ( 
 image1 
 ); 
 var 
  
 image2 
  
 = 
  
 ee 
 . 
 Image 
 ( 
 2 
 ); 
 Map 
 . 
 addLayer 
 ( 
 image2 
 , 
  
 null 
 , 
  
 '2' 
 ); 
 // Image (1 band) 
 // type: Image 
 // bands: List (1 element) 
 // 0: "constant", int ∈ [2, 2], EPSG:4326 
 print 
 ( 
 image2 
 ); 
 var 
  
 π 
  
 = 
  
 ee 
 . 
 Image 
 ( 
 Math 
 . 
 PI 
 ); 
 Map 
 . 
 addLayer 
 ( 
 π 
 , 
  
 null 
 , 
  
 'π' 
 ); 
 // Image (1 band) 
 // type: Image 
 // bands: List (1 element) 
 // 0: "constant", double ∈ [3.141592653589793, 3.141592653589793], EPSG:4326 
 // id: constant 
 // crs: EPSG:4326 
 // crs_transform: [1,0,0,0,1,0] 
 // data_type: double ∈ [3.141592653589793, 3.141592653589793] 
 print 
 ( 
 π 
 ); 
 // Create a multi-band image from a list of constant double integers. 
 var 
  
 doubleIntImage 
  
 = 
  
 ee 
 . 
 Image 
 . 
 constant 
 ([ 
 - 
 1.2 
 , 
  
 4 
 ]); 
 Map 
 . 
 addLayer 
 ( 
 doubleIntImage 
 , 
  
 null 
 , 
  
 'double int' 
 ); 
 // Image (2 bands) 
 // type: Image 
 // bands: List (2 elements) 
 // 0: "constant_0", double ∈ [-1.2, -1.2], EPSG:4326 
 // 1: "constant_1", int ∈ [4, 4], EPSG:4326 
 print 
 ( 
 doubleIntImage 
 ); 
 // Create a multi-band image from a list of constants, using hexadecimal 
 // notation. 
 var 
  
 multiband 
  
 = 
  
 ee 
 . 
 Image 
 ([ 
 0xff 
 , 
  
 0x88 
 , 
  
 0x00 
 ]); 
 Map 
 . 
 addLayer 
 ( 
 multiband 
 , 
  
 { 
 min 
 : 
  
 0 
 , 
  
 max 
 : 
  
 0xff 
 }, 
  
 'orange' 
 ); 
 // Image (3 bands) 
 // type: Image 
 // bands: List (3 elements) 
 // 0: "constant", int ∈ [255, 255], EPSG:4326 
 // 1: "constant_1", int ∈ [136, 136], EPSG:4326 
 // 2: "constant_2", int ∈ [0, 0], EPSG:4326 
 print 
 ( 
 multiband 
 );