String interpolation

2 snippets across 2 stacks — JavaScript, Python

JSJavaScript

Template Literals

syntax

`text ${expression} text`

example

const item = "coffee";
const price = 4.5;
console.log(`One ${item} costs $${price.toFixed(2)}.`);

const multiline = `Line one
Line two
Line three`;
console.log(multiline);

output

"One coffee costs $4.50."
"Line one\nLine two\nLine three"

Note Backtick strings support embedded expressions and multiline content without escape characters.

PYPython

f-strings (Formatted String Literals)

PY · Strings

syntax

f"text {expression}"

example

name = "Alice"
balance = 1234.5
print(f"User: {name}")
print(f"Balance: ${balance:,.2f}")
print(f"{'centered':^20}")

output

User: Alice
Balance: $1,234.50
      centered

Note Since Python 3.12, f-strings can contain backslashes and nested quotes freely. You can also nest f-strings inside f-strings.