function append(name, value) {
    validateArgumentsLength(arguments.length, 2);
    var state = getInternalParamsState(this);
    state.entries.push({ key: name + '', value: value + '' });
    if (state.updateURL) state.updateURL();
  }
function append(name, value) {
    validateArgumentsLength(arguments.length, 2);
    var state = getInternalParamsState(this);
    state.entries.push({ key: name + '', value: value + '' });
    if (state.updateURL) state.updateURL();
  }
function append ( name , value ) { validateArgumentsLength ( arguments . length , 2 ) ; var state = getInternalParamsState ( this ) ; state . entries . push ( { key : name + '' , value : value + '' } ) ; if ( state . updateURL ) state . updateURL ( ) ; }
`URLSearchParams.prototype.appent` method https://url.spec.whatwg.org/#dom-urlsearchparams-append
URLSearchParams . prototype . appent method https : // url . spec . whatwg . org / #dom - urlsearchparams - append
Append a parameter to the end of the parameters array.