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How do I create multiple submit buttons for the same form in Rails?
...a way as you said not to tightly couple the view to the controller? for example, for the submit buttons to change the URL? It seems that this isn't necessarily bad because a form submits variables which can change the behavior of hte controller,e ven if it user input, which the selection of the bu...
What is the difference between square brackets and parentheses in a regex?
...uestion uses keyword var in code, this probably is JavaScript). The use of php which runs on PCRE for preg matching will optimize away the lack of backtracking, however we're not in PHP either, so using classes [] instead of alternations | gives performance bonus as the match does not backtrack, and...
LINGO使用指南 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...集。
例2.3
sets:
product/A B/;
machine/M N/;
week/1..2/;
allowed(product,machine,week):x;
endsets
LINGO生成了三个父集的所有组合共八组作为allowed集的成员。列表如下：
编号 成员
1 (A,M,1)
2 2 (A,M,2...
How do I check if a string contains another string in Swift?
...
You can do exactly the same call with Swift:
Swift 4 & Swift 5
In Swift 4 String is a collection of Character values, it wasn't like this in Swift 2 and 3, so you can use this more concise code1:
let string = "hello Swift"
if string.contains("Swift") {
print("exists")
...
tinyxml XML解析库下载（tinyxml2.h 和 tinyxml2.cpp） - 源码下载 - 清泛...
...>
# include <cstdarg>
#endif
/*
TODO: intern strings instead of allocation.
*/
/*
gcc:
g++ -Wall -DDEBUG tinyxml2.cpp xmltest.cpp -o gccxmltest.exe
Formatting, Artistic Style:
AStyle.exe --style=1tbs --indent-switches --break-closing-brackets --indent-preproce...
How do I read image data from a URL in Python?
....BytesIO object at 0x7fb91b6a29b0&gt; my url is: ...model=product.template&amp;id=16&amp;field=image_medium
– С. Дэлгэрцэцэг
Sep 3 '18 at 12:43
...
What are good grep tools for Windows? [closed]
...egular expressions or literal text
Specify wildcards for files to include &amp; exclude
Search &amp; replace
Preview mode is nice because you can make sure you're replacing what you intend to.
Now I realize that the other grep tools can do all of the above. It's just that PowerGREP packages all of ...
Set a cookie to never expire
Looking at the php documentation on setting a cookie I see that I can set an expiration date for the cookie. You can set the cookie to expire at the end of the browser session or at some time in the future but I do not see a way to set the cookie to never expire. Is this even possible and how is...
commandButton/commandLink/ajax action/listener method not invoked or input value not set/updated
...ecified. Watch out with include files! You can use UIForm components in parallel, but they won't process each other during submit. You should also watch out with "God Form" antipattern; make sure that you don't unintentionally process/validate all other (invisible) inputs in the very same form (e.g....
Does my application “contain encryption”?
...hat exempts most commercial apps from Category 5 Part 2: bis.doc.gov/index.php/policy-guidance/encryption/… This means that most apps that use encryption to support their main function are fine without registration
– Andrew Alcock
Feb 25 '14 at 5:36
...