const regex = /\$10(?=[^0-9])/;
// Alternative syntax using RegExp constructor
// const regex = new RegExp('\\$10(?=[^0-9])', '')
const str = `\$6
\$7
You have received the grade of \$3 in the subject \$1 (\$10) in the semester \$2 (\$11).
Grade date: \$4
`;
let m;
if ((m = regex.exec(str)) !== null) {
// The result can be accessed through the `m`-variable.
m.forEach((match, groupIndex) => {
console.log(`Found match, group ${groupIndex}: ${match}`);
});
}
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for JavaScript, please visit: https://developer.mozilla.org/en/docs/Web/JavaScript/Guide/Regular_Expressions