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Is there a way to iterate over a dictionary?
I know NSDictionaries as something where you need a key in order to get a value . But how can I iterate over all keys and values in a NSDictionary , so that I know what keys there are, and what values there are? I know there is something called a for-in-loop in JavaScript . Is there som...
How can I select rows with most recent timestamp for each key value?
...ch row has a sensor id, a timestamp, and other fields. I want to select a single row with latest timestamp for each sensor, including some of the other fields.
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How to prevent buttons from submitting forms
In the following page, with Firefox the remove button submits the form, but the add button does not.
17 Answers
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Android search with Fragments
... a tutorial or an example of how to implement the standard Android search interface with Fragment s? In other words, is it possible to put a standard search with a SearchManager in a Fragment?
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Replace Default Null Values Returned From Left Outer Join
...ve a Microsoft SQL Server 2008 query that returns data from three tables using a left outer join. Many times, there is no data in the second and third tables and so I get a null which I think is the default for left outer join. Is there a way to replace the default values in the select statement? ...
SQL select join: is it possible to prefix all columns as 'prefix.*'?
I'm wondering if this is possible in SQL. Say you have two tables A and B, and you do a select on table A and join on table B:
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How to Create a circular progressbar in Android which rotates on it?
I am trying to create a rounded progressbar. This is what I want to achieve
12 Answers
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PostgreSQL query to return results as a comma separated list
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SELECT string_agg(id::text, ',') FROM table
Requires PostgreSQL 9.0 but that's not a problem.
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Blank HTML SELECT without blank item in dropdown list
... option unclickable.
style='display: none' makes this option not displayed in older browsers. See: Can I Use documentation for hidden attribute.
hidden makes this option to don't be displayed in the drop-down list.
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Adding asterisk to required fields in Bootstrap 3
... .control-label:after,
.form-group.required .text:after { /* change .text in whatever class of the text after the checkbox has */
content:"*";
color:red;
}
Note: not tested
You should use the .text class or target it otherwise probably, try this html:
<div class="form-group required"&g...