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How do I change an HTML selected option using JavaScript?
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Tools as pure JavaScript code for handling Selectbox:
Graphical Understanding:
Image - A
Image - B
Image - C
Updated - 25-June-2019 | Fiddler DEMO
JavaScript Code:
/**
* Empty Select Box
* @param eid Element ID
* @param value te...
ruby on rails f.select options with custom attributes
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This is not possible directly with Rails, and you'll have to create your own helper to create the custom attributes. That said, there are probably two different ways to accomplish what you want:
(1) Using a custom attribute name in HTML5. In HTML5 you are allowed to...
Android: remove notification from notification bar
I have created an application and with an event I manage to add notification in android notification bar. Now I need sample how to remove that notification from notification bar on an event ??
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Generating a unique machine id
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Parse the SMBIOS yourself and hash it to an arbitrary length. See the PDF specification for all SMBIOS structures available.
To query the SMBIOS info from Windows you could use EnumSystemFirmwareEntries, EnumSystemFirmwareTables and GetSystemFirmware...
Find all tables containing column with specified name - MS SQL Server
...ious INFORMATION_SCHEMA views included in SQL Server comply with the ISO standard definition for the INFORMATION_SCHEMA., sys.columns, sys.tables is Microsoft Sql Server specific.
– Tomasito
Mar 18 '14 at 21:36
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Add new item count to icon on button - Android
...tems under tabs. What I KNOW how to do - is create new icons with red dots and just display them when new stuff available.
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How to implement a unique index on two columns in rails
I have a table and I'm trying to add a unique index on two columns. Those columns are also indexed. So my question is if I just can remove the indexes who were just for one column or if I have to use all three indexes:
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android.widget.Switch - on/off event listener?
I would like to implement a switch button, android.widget.Switch (available from API v.14).
10 Answers
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Pandas get topmost n records within each group
Suppose I have pandas DataFrame like this:
3 Answers
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Is there an auto increment in sqlite?
... you should try to avoid:
INSERT INTO people VALUES ("John", "Smith");
and use
INSERT INTO people (first_name, last_name) VALUES ("John", "Smith");
instead. The first version is very fragile — if you ever add, move, or delete columns in your table definition the INSERT will either fail o...