大约有 37,000 项符合查询结果（耗时：0.0373秒） [XML]
Maximum length for MySQL type text
...tarea appropriate to the max length of a text field in my MySQL database table. How many characters can a type text field store?
...
How to rename a single column in a data.frame?
...estion, but it is worth noting that you can now use setnames from the data.table package.
library(data.table)
setnames(DF, "oldName", "newName")
# or since the data.frame in question is just one column:
setnames(DF, "newName")
# And for reference's sake, in general (more than once column)
nms ...
passing 2 $index values within nested ng-repeat
...add an ng-if inside the loop, you get the $index messed!
Right way
<table>
<tr ng-repeat="row in rows track by $index" ng-init="rowIndex = $index">
<td ng-repeat="column in columns track by $index" ng-init="columnIndex = $index">
<b ng-if="rowIndex == ...
UnboundLocalError on local variable when reassigned after first use
...nitialized. In a fully compiled language, it would just go into the symbol table and wait for the parse, but since it WON'T have the luxury of a second pass, the lexer does a little extra work to make life easier later on. Only, then it sees the OPERATOR, sees that the rules say "if you have an op...
How to get a DOM Element from a JQuery Selector
...
You can access the raw DOM element with:
$("table").get(0);
or more simply:
$("table")[0];
There isn't actually a lot you need this for however (in my experience). Take your checkbox example:
$(":checkbox").click(function() {
if ($(this).is(":checked")) {
/...
Setting direction for UISwipeGestureRecognizer
...Apple saying that the behavior works as was intended.
So for example in a table view you can swipe left or right in a table view cell to trigger 'delete' (this would have directions of the swipe gesture set to left and right)
This means that the original workaround is the way it's supposed to be u...
When should I really use noexcept?
...of overhead"… No, this should be implemented by not generating exception tables for such a function, which the exception dispatcher should catch and then bail out.
– Potatoswatter
May 29 '12 at 8:55
...
Are inline virtual functions really a non-sense?
... as this->Temp::myVirtualFunction() - such invokation skips the virtual table resolution and the function should be inlined without problems - why and if you'd want to do it is another topic :)
– RnR
Apr 9 '09 at 12:12
...
CSS styling in Django forms
...ces; your classes or other attributes just work if you use the Django's as_table/as_ul/as_p form methods. If you need full control for a completely custom rendering, this is clearly documented
-- EDIT 2 ---
Added a newer way to specify widget and attrs for a ModelForm.
...
Mapping composite keys using EF code first
Sql server table:
4 Answers
4
...