The aim of this page is to explain string interpolation based on the particular example of using JQ tool and JavaScript.

• String interpolation allows inserting variables and expressions into strings.
• JQ tool uses \(.variable) for string interpolation.
• JavaScript uses ${variable} for string interpolation.
• Example of JQ tool:

echo '{ "id": 12345, "subject": "Subject line here" }' | jq -r '"\(.id) \(.subject)"'

• In JQ tool, variables are enclosed in parentheses and prefixed with a backslash.
• Example of JavaScript:

const id = 12345;
const subject = "Subject line here";
const result = `${id} ${subject}`;
console.log(result); // Output: 12345 Subject line here

• In JavaScript, template literals are enclosed in backticks.
• Variables are embedded using `${}`.
• Template literals allow embedding expressions and multiline strings.
• String interpolation is useful for generating dynamic strings.

LINKS

• https://jqplay.org
• https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Template_literals