named-parameters

问题 This is my first post here. I've searched in the site, but inforutunaly no matchs. Anyway, i want to know how to use named parameters on a class. so the pdo basic form is something like. $query = $bdd->prepare('SELECT * FROM table WHERE login = :login AND pww = :pww'); $query->execute(array('login' => $login, 'pww' => $pww)); and i want to integrate this on a class regardless of the number of parameters. Currently, i have this code http://pastebin.com/kKgSkaKt and for parameters, i use

问题 This question already has answers here : How to set named argument for string.Format? (2 answers) Closed 7 years ago . I have a C# method with a variable length argument list declared using the params keyword: public void VariableLengthParameterFunction (object firstParam, params object[] secondParam) Is there any way of using named parameters when calling the method? 回答1: You can call it using named parameter like this: VariableLengthParameterFunction( secondParam: new object[] { 5, 7, 3, 2

问题 This question already has answers here : How to set named argument for string.Format? (2 answers) Closed 7 years ago . I have a C# method with a variable length argument list declared using the params keyword: public void VariableLengthParameterFunction (object firstParam, params object[] secondParam) Is there any way of using named parameters when calling the method? 回答1: You can call it using named parameter like this: VariableLengthParameterFunction( secondParam: new object[] { 5, 7, 3, 2

来源： https://stackoverflow.com/questions/17169642/python-sqlite-insert-named-parameters-or-null

来源： https://stackoverflow.com/questions/17169642/python-sqlite-insert-named-parameters-or-null

来源： https://stackoverflow.com/questions/17169642/python-sqlite-insert-named-parameters-or-null

问题 First of all: raku (perl6) is amazing. And so is Cro. It only took a week-end to fall in love. However now I stumble over something that must be extremely simple. If I use a slurpy parameter in a multiple dispatch MAIN this is recognized and works perfectly: multi MAIN( 'config', 'add', *@hostnames ) { However if I make this a non-slurpy array, this is either not recognized or I don't know how to provide it from the command line: multi MAIN( 'config', 'add', @hostnames ) { I would expect one

问题 C# 4 introduced a feature called named arguments which is especially useful in scenarios like int RegisterUser(string nameFirst, string nameLast, string nameMiddle, string email) Is there a way to force using named arguments? Maybe some attribute to apply to a method or a compiler switch I'm not aware of? I guess it can be done with code inspector tools but just want to know if there is other way. p.s. For those interested why one may need it and why not just use a class/struct to utilize

问题 On a Rails project, I am gathering a hash with 10-15 key-value pairs, and passing it to a class (service object) for instantiation. The object properties should be set from the values in the hash except when there is no value (or nil ). In this case, the property would desirably get set to a default value. Instead of checking whether every value in the hash is not nil before creating an object, I would like to find a more efficient way of doing this. I'm trying to use named parameters with

问题 Let's say I want to select records where Id = 30 . Prepared statements allow two ways of binding parameters: question marks $id = 30; $q = $conn->prepare("SELECT * FROM pdo_db WHERE id > ?"); $q->execute(array($id)); // Here above ID will be passed named parameters $sth = $conn->prepare("SELECT `id`, `title` FROM `pdo_db` WHERE `id` > :id"); $sth->execute(array( ':id' => 30 )); Both are working fine and give accurate results but I am not able to get the exact differences between these two nor