const regex = /[+-]?\d+(?:\.\d+)?/g;
// Alternative syntax using RegExp constructor
// const regex = new RegExp('[+-]?\\d+(?:\\.\\d+)?', 'g')
const str = `padding: 0;
font-size: 16pt;
width: 50%;
height: 20vh;
margin-right: 12px;
padding-right: -12.5px;`;
const subst = ` `;
// 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