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How to use JavaScript variables in jQuery selectors?
...put type="button" name="bx" value="1" />
<input type="text" id="by" />
<input type="button" name="by" value="2" />
String Concatenation
If you need IE/EDGE support use
$("#" + $(this).attr("name")).hide();
(function($) {
$("input[type=bu...
javascript find and remove object in array based on key value
... id, but how can I delete the entire object where id == 88
Simply filter by the opposite predicate:
var data = $.grep(data, function(e){
return e.id != id;
});
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For each row return the column name of the largest value
...ong putting all the departments in one column and counts in another, group by the employer id (in this case, the row number), and then filter to the department(s) with the max value. There are a couple of options for handling ties with this approach too.
library(tidyverse)
# sample data frame with...
Which is fastest? SELECT SQL_CALC_FOUND_ROWS FROM `table`, or SELECT COUNT(*)
When you limit the number of rows to be returned by a SQL query, usually used in paging, there are two methods to determine the total number of records:
...
How to use GROUP BY to concatenate strings in MySQL?
...
SELECT id, GROUP_CONCAT(name SEPARATOR ' ') FROM table GROUP BY id;
http://dev.mysql.com/doc/refman/5.0/en/group-by-functions.html#function_group-concat
From the link above, GROUP_CONCAT: This function returns a string result with the concatenated non-NULL values from a group. It re...
How do I get jQuery to select elements with a . (period) in their ID?
...elect(data);
});
});
});
Also check out How do I select an element by an ID that has characters used in CSS notation? on the jQuery FAQ.
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Sample settings.xml for maven
...icense at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing,
software distributed under the License is distributed on an
"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
KIND, either express or implied. See the License for the
specific ...
How do I search for an object by its ObjectId in the mongo console?
...om "mongodb"; works for fancier JS.
– NetOperator Wibby
Dec 3 '18 at 5:09
Awesomeness! Saved my day ????
...
What is a proper naming convention for MySQL FKs?
...name.
This naming convention allows me to "guess" the symbolic name just by looking at the table definitions, and in addition it also guarantees unique names.
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...
find() with nil when there are no records
...
Yes, just do:
Challenge.find_by_id(10)
For Rails 4 and 5:
Challenge.find_by(id: 10)
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