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How do I change the background color with JavaScript?
...roundColor=BackgroundColor //changing bg color
To change an element with ID
document.getElementById("ElementId").style.backgroundImage=imageUrl
document.getElementById("ElementId").style.backgroundColor=BackgroundColor
for elements with same class
var elements = document.getElementsByClass...
Android canvas draw rectangle
how to draw empty rectangle with etc. borderWidth=3 and borderColor=black and part within rectangle don't have content or color. Which function in Canvas to use
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How do I check in SQLite whether a table exists?
...ccepted answer, but would if the question were worded differently. The OP didn't ask how to check a table before dropping or creating. What if you have to query a table that possibly doesn't exist? This is the problem I'm facing now, and the accepted answer works best in this general problem stateme...
JQuery: detect change in input field [duplicate]
...ch may not be what you want.
There is an example of both here: http://jsfiddle.net/6bSX6/
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How to read a file in Groovy into a string?
...re is some other factor in the mix like you had a local variable that was hiding a field or something like that.
– Jeff Scott Brown
Apr 26 '18 at 20:17
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Overriding the java equals() method - not working?
...
In other words, the parameter must be of type Object. This is called overriding; your method public boolean equals(Book other) does what is called overloading to the equals() method.
The ArrayList uses overridden equals() methods to compare contents (e.g. for its contains() and equals() methods), ...
HTML5 textarea placeholder not appearing
...e the input area contains content (a newline character is, technically, valid content).
Good:
<textarea></textarea>
Bad:
<textarea>
</textarea>
Update (2020)
This is not true anymore, according to the HTML5 parsing spec:
If the next token is a U+000A LINE FEED (LF) characte...
How to close this ssh tunnel? [closed]
...st is to be
forwarded to the given host and port on the remote side.
So -L 3306:mysql-server.com:3306 binds the local port 3306 to the remote port 3306 on host mysql-server.com.
When you connect to local port 3306, the connection is forwarded over the secure channel to mysql-server.co...
How can I get the last 7 characters of a PHP string?
...characters are greater then 7 return last 7 characters else return the provided string.
or do this if you need to return message or error if length is less then 7
$newstring = (strlen($dynamicstring)>7)?substr($dynamicstring, -7):"message";
substr documentation
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how do i block or restrict special characters from input fields with jquery?
... characters (e.g., backspace, delete, tab) and copy+paste. None of the provided answers that I tried satisfied all of these requirements, so I came up with the following using the input event.
$('input').on('input', function() {
$(this).val($(this).val().replace(/[^a-z0-9]/gi, ''));
});
Edit:
A...