//Examples of NSString Category

NSString *testStr = @"Hello";

if([testStr isValid]){
    NSLog(@"It is a Valid String");
}

NSString *blankStr = @"  ";
if([blankStr isBlank]){
    NSLog(@"It is a blank String");
}

NSString *noOfWordsStr = @"Number of Words";
NSLog(@"Number of words are :%d",[noOfWordsStr countNumberOfWords]);

if([noOfWordsStr containsString:@"of"]){
    NSLog(@"YES");
}

if([noOfWordsStr isBeginsWith:@"N"]){
    NSLog(@"YES");
}

if([noOfWordsStr isEndssWith:@"s"]){
    NSLog(@"YES");
}

NSLog(@"string after replace charcter is :%@",[noOfWordsStr replaceCharcter:@"of" withCharcter:@"offfff"]);

NSLog(@"Get substring :%@",[noOfWordsStr getSubstringFrom:1 to:6]);

NSLog(@"Add string :%@",[noOfWordsStr addString:@" are 3"]);

NSLog(@"Removed string :%@",[noOfWordsStr removeSubString:@"of"]);

NSString *letterStr = @"abcd";
NSString *numberStr = @"1234";
NSString *letterNuberStr = @"sdf545";

if([letterStr containsOnlyLetters]){
    NSLog(@"Contanis only letters");
}

if([numberStr containsOnlyNumbers]){
    NSLog(@"Contanis only numbers");
}

if([letterNuberStr containsOnlyNumbersAndLetters]){
    NSLog(@"Contanis letters and numbers");
}

NSArray *array = [NSArray arrayWithObjects:letterStr,numberStr,letterNuberStr, nil];
if([numberStr isInThisarray:array]){
    NSLog(@"Yes number string is in this array");
}

NSLog(@"String from array is :%@",[NSString getStringFromArray:array]);

NSLog(@"Array from String is :%@",[noOfWordsStr getArray]);

NSLog(@"My Application Version number is :%@",[NSString getMyApplicationVersion]);

NSLog(@"My Application name is :%@",[NSString getMyApplicationName]);

if([@"pjr@gmail.com" isValidEmail]){
    NSLog(@"It is valid Email");
}
if(![@"21323gf" isVAlidPhoneNumber]){
    NSLog(@"It is not valid Phone number");
}
if([@"http://www.google.com" isValidUrl]){
    NSLog(@"It is valid URL");
}