primary purposes: to take advantage of Julia's powerful multiple-dispatch mechanism, to improve human readability, and to catch programmer errors. Describing Julia in the lingo of type systems, it is: expanded to interpolate the value of the argument into the final expression: julia> @sayhello("human") Hello, human We can view the quoted return expression using the function macroexpand (important note: macros): julia> ex = macroexpand(Main, :(@sayhello("human")) ) :(Main.println("Hello, ", "human")) julia> typeof(ex) Expr We can see that the "human" literal has been interpolated into the expression

primary purposes: to take advantage of Julia's powerful multiple-dispatch mechanism, to improve human readability, and to catch programmer errors. Describing Julia in the lingo of type systems, it is: expanded to interpolate the value of the argument into the final expression: julia> @sayhello("human") Hello, human We can view the quoted return expression using the function macroexpand (important note: macros): julia> ex = macroexpand(Main, :(@sayhello("human")) ) :(Main.println("Hello, ", "human")) julia> typeof(ex) Expr We can see that the "human" literal has been interpolated into the expression

primary purposes: to take advantage of Julia's powerful multiple-dispatch mechanism, to improve human readability, and to catch programmer errors. Describing Julia in the lingo of type systems, it is: expanded to interpolate the value of the argument into the final expression: julia> @sayhello("human") Hello, human We can view the quoted return expression using the function macroexpand (important note: macros): julia> ex = macroexpand(Main, :(@sayhello("human")) ) :(Main.println("Hello, ", "human")) julia> typeof(ex) Expr We can see that the "human" literal has been interpolated into the expression

primary purposes: to take advantage of Julia's powerful multiple-dispatch mechanism, to improve human readability, and to catch programmer errors. Describing Julia in the lingo of type systems, it is: expanded to interpolate the value of the argument into the final expression: julia> @sayhello("human") Hello, human We can view the quoted return expression using the function macroexpand (important note: macros): julia> ex = macroexpand(Main, :(@sayhello("human")) ) :(Main.println("Hello, ", "human")) julia> typeof(ex) Expr We can see that the "human" literal has been interpolated into the expression

primary purposes: to take advantage of Julia's powerful multiple-dispatch mechanism, to improve human readability, and to catch programmer errors. Describing Julia in the lingo of type systems, it is: expanded to interpolate the value of the argument into the final expression: julia> @sayhello("human") Hello, human We can view the quoted return expression using the function macroexpand (important note: macros): julia> ex = macroexpand(Main, :(@sayhello("human")) ) :(Main.println("Hello, ", "human")) julia> typeof(ex) Expr We can see that the "human" literal has been interpolated into the expression

primary purposes: to take advantage of Julia's powerful multiple-dispatch mechanism, to improve human readability, and to catch programmer errors. Describing Julia in the lingo of type systems, it is: expanded to interpolate the value of the argument into the final expression: julia> @sayhello("human") Hello, human We can view the quoted return expression using the function macroexpand (important note: macros): julia> ex = macroexpand(Main, :(@sayhello("human")) ) :(Main.println("Hello, ", "human")) julia> typeof(ex) Expr We can see that the "human" literal has been interpolated into the expression

primary purposes: to take advantage of Julia's powerful multiple-dispatch mechanism, to improve human readability, and to catch programmer errors. Describing Julia in the lingo of type systems, it is: expanded to interpolate the value of the argument into the final expression: julia> @sayhello("human") Hello, human We can view the quoted return expression using the function macroexpand (important note: macros): julia> ex = macroexpand(Main, :(@sayhello("human")) ) :(Main.println("Hello, ", "human")) julia> typeof(ex) Expr We can see that the "human" literal has been interpolated into the expression

primary purposes: to take advantage of Julia's powerful multiple-dispatch mechanism, to improve human readability, and to catch programmer errors. Describing Julia in the lingo of type systems, it is: expanded to interpolate the value of the argument into the final expression: julia> @sayhello("human") Hello, human We can view the quoted return expression using the function macroexpand (important note: macros): julia> ex = macroexpand(Main, :(@sayhello("human")) ) :(Main.println("Hello, ", "human")) julia> typeof(ex) Expr We can see that the "human" literal has been interpolated into the expression

primary purposes: to take advantage of Julia's powerful multiple-dispatch mechanism, to improve human readability, and to catch programmer errors. Describing Julia in the lingo of type systems, it is: expanded to interpolate the value of the argument into the final expression: julia> @sayhello("human") Hello, human We can view the quoted return expression using the function macroexpand (important note: macros): julia> ex = macroexpand(Main, :(@sayhello("human")) ) :(Main.println("Hello, ", "human")) julia> typeof(ex) Expr We can see that the "human" literal has been interpolated into the expression

primary purposes: to take advantage of Julia's powerful multiple-dispatch mechanism, to improve human readability, and to catch programmer errors. Describing Julia in the lingo of type systems, it is: expanded to interpolate the value of the argument into the final expression: julia> @sayhello("human") Hello, human We can view the quoted return expression using the function macroexpand (important note: macros): julia> ex = macroexpand(Main, :(@sayhello("human")) ) :(Main.println("Hello, ", "human")) julia> typeof(ex) Expr We can see that the "human" literal has been interpolated into the expression