大约有 47,000 项符合查询结果(耗时:0.0399秒) [XML]

https://stackoverflow.com/ques... 

form serialize javascript (no framework)

... Here is pure JavaScript approach: var form = document.querySelector('form'); var data = new FormData(form); var req = new XMLHttpRequest(); req.send(data); Though it seems to be working only for POST requests. https://developer.mozilla.org/en-US/docs/Web/API/FormData ...
https://stackoverflow.com/ques... 

What is causing this ActiveRecord::ReadOnlyRecord error?

...s automatically inferred only if :joins was specified without an explicit :select nor an explicit (or finder-scope-inherited) :readonly option (see the implementation of set_readonly_option! in active_record/base.rb for Rails 2.3.4, or the implementation of to_a in active_record/relation.rb and of c...
https://stackoverflow.com/ques... 

How do you get the index of the current iteration of a foreach loop?

...things in parallel ... that's exactly what the indexing form of Enumerable.Select does. – Jim Balter Oct 26 '13 at 0:57 11 ...
https://stackoverflow.com/ques... 

What is the way to quick-switch between tabs in Xcode 4

... Shortcuts are: CMD + SHIFT + } - Select Next tab CMD + SHIFT + { - Select Previous tab share | improve this answer | follow ...
https://stackoverflow.com/ques... 

How does the SQL injection from the “Bobby Tables” XKCD comic work?

..., the parenthesis makes more sense with an INSERT. Thinking backwards, the SELECT would not run anyway as the Insert of the Little Bobby Tables in the table would have already dropped the table. – ypercubeᵀᴹ Jan 21 '13 at 21:41 ...
https://stackoverflow.com/ques... 

Can PHP PDO Statements accept the table or column name as parameter?

... case 1: $tbl = 'users'; break; } $sql = "SELECT * FROM $tbl"; } By leaving no default case or using a default case that returns an error message you ensure that only values that you want used get used. ...
https://stackoverflow.com/ques... 

SQL Server query to find all permissions/access for all users in a database

...s the user/role has on an object. Examples could include CONNECT, EXECUTE, SELECT DELETE, INSERT, ALTER, CONTROL, TAKE OWNERSHIP, VIEW DEFINITION, etc. This value may not be populated for all roles. Some built in roles have implicit permission d...
https://stackoverflow.com/ques... 

“Wrap with try…catch” in IntelliJ?

Can I select a block of code and have IntelliJ wrap it with a "try...catch" ? 9 Answers ...
https://stackoverflow.com/ques... 

What is the difference between ExecuteScalar, ExecuteReader and ExecuteNonQuery?

... then the result is the first column of the first row. An example might be SELECT @@IDENTITY AS 'Identity'. ExecuteReader is used for any result set with multiple rows/columns (e.g., SELECT col1, col2 from sometable). ExecuteNonQuery is typically used for SQL statements without results (e.g., UPDATE...
https://stackoverflow.com/ques... 

Difference between “change” and “input” event for an `input` element

...an element is changed through the user interface. onchange occurs when the selection, the checked state or the contents of an element have changed. In some cases, it only occurs when the element loses the focus or when pressing return (Enter) and the value has been changed. The onchange attribute ca...