TypeScript Output

console.log writes to the console

console.log is the standard way to print. You pass it a value, or several values. After the program runs, you see those characters in the console — on StudyGrid, that is the output pane under the editor. This is TypeScript’s equivalent of C++ cout.

console.log("Hello from console.log");

Pass several values

One call can take many arguments. StudyGrid joins them with a space, the same way Node does. Mixing strings and numbers is normal. You do not chain << the way C++ does.

console.log("Score:", 12, "points");
console.log(3, "plus", 4, "is", 3 + 4);

The order is left to right. First the label, then the number, then more text. You can also build one string with+ and pass that single value.

Each call starts a new line

console.log ends with a newline. The next call prints on the next line. To print two lines from one string, put \n inside the quotes.

console.log("first line");
console.log("second line");
console.log("third line\nfourth line");

Numbers, booleans, and strings

console.log prints integers, floating-point values, booleans, and quoted text. Aboolean prints as the words true and false, not as 1 and0 the way C++ cout often does.

const count: number = 7;
const price: number = 2.5;
const ready: boolean = true;
console.log(count);
console.log(price);
console.log(ready);
console.log("done");

Spaces between arguments are automatic

Separate arguments get a space between them. If you concatenate with + instead, you must put the spaces in yourself. "Hi" + "there" is Hithere.

Nothing to include

C++ needs <iostream> before cout. TypeScript does not. console is there from the start. Change a printed value and compile again.

Next: comments, so you can leave notes next to the lines that print.