CSE 154 Examples

Array Concatenation

Description :

Javascript offers a handy concat method for array concatenation. The concat method can concatenate arrays into a single array. The method takes as many arguments as needed and returns a new concatenated array. The arrays sent as arguments or the pre-existing arrays aren't modified by this method.

Syntax : let changed = original.concat(original_array, original_second_array, ...);

Examples :

             
               let arr = ["Roger", "Patrick", "Teresa"];
               let arrTwo = ["Three", "Four", "Five"];
               let result = arr.concat(arrTwo);
						  
               result =  ??

             
               let arr = ["Roger", "Patrick", "Teresa"];
               let arrTwo = ["Three", "Four", "Five"];
               let arrThree = [1.3, 4.5, 6.5];
							 let result = arr.concat(arrTwo, arrThree);
             
               result =  ??