const regex = /^\$\-?([1-9]{1}[0-9]{0,2}(\,\d{3})*(\.\d{0,2})?|[1-9]{1}\d{0,}(\.\d{0,2})?|0(\.\d{0,2})?|(\.\d{1,2}))$|^\-?\$([1-9]{1}\d{0,2}(\,\d{3})*(\.\d{0,2})?|[1-9]{1}\d{0,}(\.\d{0,2})?|0(\.\d{0,2})?|(\.\d{1,2}))$|^\(\$([1-9]{1}\d{0,2}(\,\d{3})*(\.\d{0,2})?|[1-9]{1}\d{0,}(\.\d{0,2})?|0(\.\d{0,2})?|(\.\d{1,2}))\)$/gmi;
// Alternative syntax using RegExp constructor
// const regex = new RegExp('^\\$\\-?([1-9]{1}[0-9]{0,2}(\\,\\d{3})*(\\.\\d{0,2})?|[1-9]{1}\\d{0,}(\\.\\d{0,2})?|0(\\.\\d{0,2})?|(\\.\\d{1,2}))$|^\\-?\\$([1-9]{1}\\d{0,2}(\\,\\d{3})*(\\.\\d{0,2})?|[1-9]{1}\\d{0,}(\\.\\d{0,2})?|0(\\.\\d{0,2})?|(\\.\\d{1,2}))$|^\\(\\$([1-9]{1}\\d{0,2}(\\,\\d{3})*(\\.\\d{0,2})?|[1-9]{1}\\d{0,}(\\.\\d{0,2})?|0(\\.\\d{0,2})?|(\\.\\d{1,2}))\\)$', 'gmi')
const str = `\$100,351,000.58`;
const subst = `willie`;
// The substituted value will be contained in the result variable
const result = str.replace(regex, subst);
console.log('Substitution result: ', result);
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