// check if user is valid or not
ValidUserValidationResult userValidationResult = validUserValidator.validateUser(validationRequest);

string date = user.RegistrationDate.ToShortDateString().ToString();

let arr = []
if(arr[record.id]) {
    arr[record.id] = false
} else {
    arr[record.id] = false
}
this.setState({a: arr})
arr = []

/// <summary> 
/// Desctop constructor
/// </summary>
...

A,B=map(str,input().split())        # let's begin by casting strings to strings!

while(int(A)!=0 and int(B)!=0):

    tamanhoa=0
    tamanhob=0

    for i in range(len(A)):
        tamanhoa+=1                 # wonderful way to determine the length of
                                    # a string!
    for i in range(len(B)):
        tamanhob+=1

    vA = [0]*tamanhoa
    vB = [0]*tamanhob

    if tamanhoa>tamanhob:
        vA = [0]*tamanhoa           # Just to make sure it really gets set!!!
        vB = [0]*tamanhoa

        for i in range(tamanhoa-1,-1,-1):
            vA[i]=int(A[i])         # he even saved an operation by casting
                                    # the char to int at the same time!
        for i in range(tamanhob):
            vB[i+1]=int(B[i])
    elif tamanhoa<tamanhob:
        vA = [0]*tamanhob           # Just to make sure it really gets set!!!
        vB = [0]*tamanhob

        for i in range(tamanhoa):
            vA[i+1]=int(A[i])

        for i in range(tamanhob-1,-1,-1):
            vB[i]=int(B[i])

        tamanhoa=tamanhob

    else:
        for i in range(tamanhoa):
            vA[i]=int(A[i])

        for i in range(tamanhob):
            vB[i]=int(B[i])

    print(vA)
    print(vB)
    
    carry = 0

    for i in range(tamanhoa-1,-1,-1):
        soma = vA[i] + vB[i]
        if soma > 9:
            carry += 1
            if vA[i-1]!= 9:
                vA[i-1] += 1
            else:
                vB[i-1] +=1


    if carry == 0:
        print('No carry operation.')
    elif carry == 1:
        print(carry, 'carry operation.')
    else:
        print(carry, 'carry operations.')

    A,B=map(str,input().split())    # why bother casting strings to int? yay

    if int(A)==0 and int(B)==0:
        break

if (argv[1][0]=='D'){
                demo=1;
                argv[1]++;
        }

        if (argv[1][0]=='P'){
                if (sscanf(argv[1], "P%ux%ux%ux%ux%lfx%ux%u"
                                ,&temporal_resample
                                ,&input_w, &input_h, &rate, &input_gamma
                                ,&output_w
                                ,&output_h)!=7){
                        fprintf(stderr,"%s: Invalid argument format\n", progname);
                        print_usage();
                        exit(3);
                }
                ppm=1; 
         }else{
                if (sscanf(argv[1], "%ux%ux%ux%ux%lfx%ux%u"
                                ,&temporal_resample
                                ,&input_w
                                ,&input_h
                                ,&rate
                                ,&input_gamma
                                ,&output_w
                                ,&output_h)!=7){
                        fprintf(stderr,"%s: Invalid argument format\n", progname);
                        print_usage();
                        exit(3);
                }

  <div ng-repeat="recipient in $ctrl.resource.invoiceRecipients track by $index">
    <div>
      {{$ctrl.resource.invoiceRecipients[$index]}}
    </div>
  </div>

if ( x == true)
{
    // do something
}

in_array($this->market, ["ru"])

value unless value.select! { |v| v != "0" }.nil?

if(
  (!_.isEmpty($(switcher).val()) && value_isnt == ":empty") ||
  ((value_isnt) && !$(switcher).is(value_isnt) && value_isnt != ':empty') ||
  (value_is && $(switcher).is(value_is) && value_is != ':empty') ||
  (value_is == ':empty' && _.isEmpty($(switcher).val())) ||
  (value && _switcherValue == value) ||
  (valueIn && .anyMatchInArray(valueIn.split(','), .flatten([_switcherValue]))) ||
  (valueOut && !.anyMatchInArray(valueOut.split(','), .flatten([_switcherValue])))
)

try:
    raise
except RuntimeError:
    raise

contracts = Contract.objects.filter(staff=staff).filter(active=True)
if contracts.__len__() > 0:
   ind = contracts.__len__() - 1
   dic[‘active_contract_id’] = contracts[ind].id
else:
   dic[‘active_contract_id’] = contracts[0].id

    self.isOptionsVisible = ko.computed(function() {
        if((self.type() == 'select') || (self.type() == 'multiselect') || (self.type() == 'radio') || (self.type() == 'checkbox') || (self.type() == 'upload')) {
            return true;
        }

        return false;
    }, this);

    self.isNameVisible = ko.computed(function() {
        if((self.type() == 'text') || (self.type() == 'textarea') || (self.type() == 'select') || (self.type() == 'multiselect') || (self.type() == 'radio') || (self.type() == 'checkbox') || (self.type() == 'upload')) {
            return true;
        }

        return false;
    }, this);

    self.isBeforeAfterImagesVisible = ko.computed(function() {
        if((self.type() == 'text') || (self.type() == 'textarea') || (self.type() == 'select') || (self.type() == 'multiselect') || (self.type() == 'radio') || (self.type() == 'checkbox') || (self.type() == 'upload')) {
            return true;
        }

        return false;
    }, this);

    self.isTooltipVisible = ko.computed(function() {
        if((self.type() == 'text') || (self.type() == 'textarea') || (self.type() == 'select') || (self.type() == 'multiselect') || (self.type() == 'radio') || (self.type() == 'checkbox') || (self.type() == 'upload')) {
            return true;
        }

        return false;
    }, this);

    self.isLabelVisible = ko.computed(function() {
        if((self.type() == 'text') || (self.type() == 'textarea') || (self.type() == 'select') || (self.type() == 'multiselect') || (self.type() == 'radio') || (self.type() == 'checkbox') || (self.type() == 'upload') || (self.type() == 'info')) {
            return true;
        }

        return false;
    }, this);

    self.isClassVisible = ko.computed(function() {
        if((self.type() == 'text') || (self.type() == 'textarea') || (self.type() == 'select') || (self.type() == 'multiselect') || (self.type() == 'radio') || (self.type() == 'checkbox') || (self.type() == 'upload')) {
            return true;
        }

        return false;
    }, this);

    self.isStyleVisible = ko.computed(function() {
        if((self.type() == 'text') || (self.type() == 'textarea') || (self.type() == 'select') || (self.type() == 'multiselect') || (self.type() == 'radio') || (self.type() == 'checkbox') || (self.type() == 'upload')) {
            return true;
        }

        return false;
    }, this);

.black {
    color: #000;
}

.not-black {
    color: #999;
}