reserved-words

Reserved keywords in JavaScript

由 自闭症网瘾萝莉.ら 提交于 2019-11-26 14:49:01
What JavaScript keywords (function names, variables, etc) are reserved? benc We should be linking to the actual sources of info, rather than just the top google hit. http://developer.mozilla.org/En/Core_JavaScript_1.5_Reference/Reserved_Words JScript 8.0: http://msdn.microsoft.com/en-us/library/ttyab5c8.aspx art4theSould Here is my poem, which includes all of the reserved keywords in JavaScript, and is dedicated to those who remain honest in the moment, and not just try to score: Let this long package float, Goto private class if short. While protected with debugger case, Continue volatile

Is it bad practice to use a built-in function name as an attribute or method identifier?

由 早过忘川 提交于 2019-11-26 13:48:29
问题 I know to never use built-in function names as variable identifiers. But are there any reasons not to use them as attribute or method identifiers? For example, is it safe to write my_object.id = 5 , or define an instance method dict in my own class? 回答1: It won't confuse the interpreter but it may confuse people reading your code. Unnecessary use of builtin names for attributes and methods should be avoided. Another ill-effect is that shadowing builtins confuses syntax highlighters in most

Using reserved words as property names, revisited

由 家住魔仙堡 提交于 2019-11-26 09:36:09
问题 Can a reserved word be used as an object\'s property name? This issue was raised indirectly in a previous Stack Overflow question: Browser support for using a reserved word as a property name in JavaScript. The answer seemed general consensus by Alex Wayne: You can use those words, but only as strings and not shorthand properties. foo[\'class\']; // cool foo.class; // not cool While I think that they are probably more knowledgeable than me in this area and it is probably a bad idea to use

Reserved words as names or identifiers

由 爱⌒轻易说出口 提交于 2019-11-26 08:57:30
问题 Is there any tricky way to use Java reserved words as variable, method, class, interface, package, or enum constant names? 回答1: No, there is no way. That's why they're labeled "reserved". 回答2: This is a valid question. Such a thing is possible in other languages. In C#, prefix the identifier with @ (as asked before); in Delphi, prefix with & . But Java offers no such feature (partly because it doesn't really need to interact with identifiers defined by other languages the way the .Net world

SQL error: Incorrect syntax near the keyword 'User'

由 最后都变了- 提交于 2019-11-26 06:45:53
问题 I am using SQL to insert data to SQL Database file using C# as follows. String cs = System.Configuration.ConfigurationManager.ConnectionStrings[\"connection1\"].ConnectionString; SqlConnection conn = new SqlConnection(cs); String sql = \"INSERT INTO User (login, password, status) \" + \"VALUES (@login, @password, @status)\"; SqlCommand comm = new SqlCommand(sql, conn); comm.Parameters.Add(\"@login\", System.Data.SqlDbType.VarChar); comm.Parameters.Add(\"@password\", System.Data.SqlDbType

Automatic reserved word escaping for Hibernate tables and columns

由 寵の児 提交于 2019-11-26 05:35:18
问题 I am trying to use one Hibernate mapping for several different databases: H2, Oracle, MySql. Each database has a different list of reserved words. I would like Hibernate to automatically escape the reserved words. I know I can: use backticks to force escaping (escape everything just to be safe) change all identifiers so they are certainly not keywords in any database (make them ugly) tie the schema to a specific set of databases, escaping the union of keywords (will break if I add new

Cannot create a database table named 'user' in PostgreSQL

由 穿精又带淫゛_ 提交于 2019-11-26 04:52:20
问题 It seems PostgreSQL does not allow to create a database table named \'user\'. But MySQL will allow to create such a table. Is that because it is a key word? But Hibernate cannot identify any issue (even if we set the PostgreSQLDialect). 回答1: user is a reserved word and it's usually not a good idea use reserved words for identifiers (tables, columns). If you insist on doing that you have to put the table name in double quotes: create table "user" (...); But then you always need to use double

Reserved keywords in JavaScript

由 拥有回忆 提交于 2019-11-26 04:03:51
问题 What JavaScript keywords (function names, variables, etc) are reserved? 回答1: We should be linking to the actual sources of info, rather than just the top google hit. http://developer.mozilla.org/En/Core_JavaScript_1.5_Reference/Reserved_Words JScript 8.0: http://msdn.microsoft.com/en-us/library/ttyab5c8.aspx 回答2: Here is my poem, which includes all of the reserved keywords in JavaScript, and is dedicated to those who remain honest in the moment, and not just try to score: Let this long

What is the equivalent of Java's final in C#?

由 一曲冷凌霜 提交于 2019-11-26 04:02:49
问题 What is the equivalent of Java\'s final in C#? 回答1: The final keyword has several usages in Java. It corresponds to both the sealed and readonly keywords in C#, depending on the context in which it is used. Classes To prevent subclassing (inheritance from the defined class): Java public final class MyFinalClass {...} C# public sealed class MyFinalClass {...} Methods Prevent overriding of a virtual method. Java public class MyClass { public final void myFinalMethod() {...} } C# public class

Syntax error due to using a reserved word as a table or column name in MySQL

由 折月煮酒 提交于 2019-11-25 23:55:11
问题 This post is a Community Wiki . Edit existing answers to improve this post. It is not currently accepting new answers. I\'m trying to execute a simple MySQL query as below: INSERT INTO user_details (username, location, key) VALUES (\'Tim\', \'Florida\', 42) But I\'m getting the following error: ERROR 1064 (42000): You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near \'key) VALUES (\'Tim\', \'Florida\', 42)\' at
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