Showing it back, in code

output

(waiting…)

Remember when Howie peeked inside the box?

Step 1 / 23recall

let score = 100;
console.log(score);

Output

Aspect	JavaScript	TypeScript	Python	Dart	PHP
Word for "print"?	console.log	console.log	print	print	echo
Needs parentheses?	yes	yes	yes	yes	no
Line ends with semicolon?	yes	yes	no	yes	yes

When Howie peeks into the box, only Howie sees the value.

To show it to anyone else — the screen, the user, the world — the program has to print it.

Printing means: read the box, then send the value out to the screen.

In js and ts, the print line is console.log(score); — the box-name goes inside the parentheses.

In py, it is shorter: print(score). Same idea, fewer letters.

In dart, it is print(score); — like Python, but with the semicolon at the end.

In php, the word is echo — and echo does not need parentheses around the box-name.

Most languages need parentheses around the name; PHP is the odd one out.

Most lines end with ;; Python is the odd one out.

The name inside the parentheses is the box you want to read — the program looks it up, finds the value, and shows that.

Different words. *Same job*: read the box, send the value to the screen.

Check yourself

Quick check

In Python, which line shows the value of `score` on the screen?

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