woocommerce/plugins/woocommerce-admin/client/products/constants.ts

export const NUMBERS_AND_ALLOWED_CHARS = '[^-0-9%s1%s2]';
export const NUMBERS_AND_DECIMAL_SEPARATOR = '[^-\\d\\%s]+';
export const ONLY_ONE_DECIMAL_SEPARATOR = '[%s](?=%s*[%s])';
// This should never be a real slug value of any existing shipping class
export const ADD_NEW_SHIPPING_CLASS_OPTION_VALUE =
	'__ADD_NEW_SHIPPING_CLASS_OPTION__';
export const UNCATEGORIZED_CATEGORY_SLUG = 'uncategorized';
export const PRODUCT_VARIATION_TITLE_LIMIT = 32;
export const STANDARD_RATE_TAX_CLASS_SLUG = 'standard';