大约有 6,100 项符合查询结果（耗时：0.0209秒） [XML]
Is there a way that I can check if a data attribute exists?
...
if ($("#dataTable").data('timer')) {
...
}
NOTE this only returns true if the data attribute is not empty string or a "falsey" value e.g. 0 or false.
If you want to check for the existence of the data attribute, even if empty, do th...
Case-insensitive search in Rails model
... an Arel example of a case-insensitive search:
Product.where(Product.arel_table[:name].matches('Blue Jeans'))
The advantage of this type of solution is that it is database-agnostic - it will use the correct SQL commands for your current adapter (matches will use ILIKE for Postgres, and LIKE for e...
Accessing a Dictionary.Keys Key through a numeric index
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seems to not work with HashTable System.Collections.ICollection' does not contain a definition for 'ElementAt' and no extension method 'ElementAt' accepting a first argument of type 'System.Collections.ICollection' could be found
–...
Why do we need private subnet in VPC?
... VPC is defined by what that subnet's default route is, in the VPC routing tables.
This configuration, in turn, dictates the validity of using, or not using, public IP addresses on instances on that particular subnet.
Each subnet has exactly one default route, which can be only one of two thing...
How can I search for a multiline pattern in a file?
...l regex by adding -P. find . -exec grep -nHP '(?s)SELECT.{1,60}FROM.{1,20}table_name' '{}' \;
– Jim
Feb 22 '13 at 13:02
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Why would you use an ivar?
... in the implementations of an accessor, a convenience constructor, copy, mutableCopy, and archiving/serialization implementations.
It's also more frequent as one moves from the everything has a public readwrite accessor mindset to one which hides its implementation details/data well. Sometimes you n...
Multiline TextView in Android?
...quip ex ea commodo consequat."></TextView>
You can do this with TableRow, see below code
<TableRow >
<TextView
android:id="@+id/tv_description_heading"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
...
How to chain scope queries with OR instead of AND?
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Use ARel
t = Person.arel_table
results = Person.where(
t[:name].eq("John").
or(t[:lastname].eq("Smith"))
)
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Disabling contextual LOB creation as createClob() method threw error
...angerous! It leads to unexpected COMMITs. When hibernate creates temporary tables it has to open a new transaction, since DDL statements in Oracle DB imply COMMIT. By setting this option to false you disable opening new transaction and DDL get issues within your transaction COMMITing it.
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The developers of this app have not set up this app properly for Facebook Login?
...he respective app from the drop down.
Go to 'Status & Review' from the table in the left side of the page.
Do you want to make this app and all its live features available to the general public? - Select switch to set YES/NO value.
Update:
The YES/NO button will be disabled until and unless y...