lib/filters/upper.js
function upper (value) {
  if (value === null || value === undefined) {
    return value
  }
  return String.prototype.toUpperCase.call(value)
}
function upper (value) {
  if (value === null || value === undefined) {
    return value
  }
  return String.prototype.toUpperCase.call(value)
}
function upper ( value ) { if ( value === null || value === undefined ) { return value } return String . prototype . toUpperCase . call ( value ) }
Returns the value in upper case.
@param {string} value - The value
@returns {string} Upper case value
Returns the value in upper case .