@vabole/patcher/examples/validator-error-message.js

Tool for patching npm packages without modifying source repositories

// validator-error-message.js
export default {
  globalNpmPackage: "validator",
  targetFile: "lib/util/assertString.js", 
  beautify: true,
  replacements: [
    [
      `function assertString(input) {
  var isString = typeof input === 'string' || input instanceof String;
  if (!isString) {
    var invalidType = _typeof(input);
    if (input === null) invalidType = 'null';else if (invalidType === 'object') invalidType = input.constructor.name;
    throw new TypeError("Expected a string but received a ".concat(invalidType));
  }
}`,
      `function assertString(input) {
  var isString = typeof input === 'string' || input instanceof String;
  if (!isString) {
    var invalidType = _typeof(input);
    if (input === null) invalidType = 'null';else if (invalidType === 'object') invalidType = input.constructor.name;
    throw new TypeError("Validation failed: Please provide a valid text value instead of a ".concat(invalidType));
  }
}` 
    ]
  ]
}