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How to play a notification sound on websites?
...bed):
let src = 'https://file-examples.com/wp-content/uploads/2017/11/file_example_MP3_700KB.mp3';
let audio = new Audio(src);
audio.play();
See more here.
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How to insert a SQLite record with a datetime set to 'now' in Android application?
...QL so you can enter a raw SQL query.
mDb.execSQL("INSERT INTO "+DATABASE_TABLE+" VALUES (null, datetime()) ");
Or the java date time capabilities :
// set the format to sql date time
SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
Date date = new Date();
ContentValue...
jquery disable form submit on enter
...it() method.
<form id="myform" method="post">
<input name="fav_color" type="text">
<input name="fav_color_2" type="text">
<button type="button" id="form-button-submit">DO IT!</button>
</form>
<script>
$('#form-button-submit').click(function(){
$(...
Write applications in C or C++ for Android? [closed]
...ink androidsnippets.wordpress.com/2012/08/30/…
– KK_07k11A0585
Aug 31 '12 at 6:28
2
...
Change font color for comments in vim
...vim, regarding this issue especially, over at http://vim.wikia.com/wiki/256_colors_in_vim. A decent place to get started though, is via:
be
:verbose hi
when actually inside vim, and editing a file. Then check out how all of the variables have had metadata associated with them. Data returned fr...
How to make an HTML back link?
...benefit of covering the case that the referring page opened with a target="_blank" attribute on the link, which history.go(-1) does not.
– Chris Krycho
Dec 5 '12 at 3:52
4
...
How to ignore a property in class if null, using json.net
...ng property which you can set to ignore.
Here's a sample:
JsonSerializer _jsonWriter = new JsonSerializer {
NullValueHandling = NullValueHandling.Ignore
};
Alternatively, as suggested by @amit
JsonConvert.SerializeObject(myObject, ...
How do I create a PDO parameterized query with a LIKE statement?
...s how to use LIKE with % partial matching for MySQL databases: WHERE column_name LIKE CONCAT('%', :dangerousstring, '%')
where the named parameter is :dangerousstring.
In other words, use explicitly unescaped % signs in your own query that are separated and definitely not the user input.
Edit: ...
Relative frequencies / proportions with dplyr
...
Try this:
mtcars %>%
group_by(am, gear) %>%
summarise(n = n()) %>%
mutate(freq = n / sum(n))
# am gear n freq
# 1 0 3 15 0.7894737
# 2 0 4 4 0.2105263
# 3 1 4 8 0.6153846
# 4 1 5 5 0.3846154
From the dplyr vigne...
How to extract an assembly from the GAC?
...ble as any normal folder
in explorer.
Open “%windir%\assembly\GAC_MSIL”.
Browse to your DLL folder into the deep to find your DLL.
Copy the DLL somewhere on your hard disk and refer it from there in your
project
Run "regsvr32 %windir%\Microsoft.NET\Framework\<.NET
version di...