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How to create a file in memory for user to download, but not through server?
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You can use data URIs. Browser support varies; see Wikipedia. Example:
<a href="data:application/octet-stream;charset=utf-16le;base64,//5mAG8AbwAgAGIAYQByAAoA">text file</a>
The octet-stream is to force a download prompt. Otherwise, it will pr...
Most efficient way to cast List to List
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The syntax for this sort of assignment uses a wildcard:
List<SubClass> subs = ...;
List<? extends BaseClass> bases = subs;
It's important to realize that a List<SubClass> is not interchangeable with a List<BaseCla...
Maximum size of a element
I'm working with a canvas element with a height of 600 to 1000 pixels and a width of several tens or hundreds of thousands of pixels. However, after a certain number of pixels (obviously unknown), the canvas no longer display shapes I draw with JS.
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Android check internet connection [duplicate]
...onnected to internet and returns true if connected:
private boolean isNetworkConnected() {
ConnectivityManager cm = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);
return cm.getActiveNetworkInfo() != null && cm.getActiveNetworkInfo().isConnected();
}
in mani...
How to fix: “No suitable driver found for jdbc:mysql://localhost/dbname” error when using pools? [du
...nection to my database, when I put test my code using the main method, it works seamlessly. However, when trying to access it through Tomcat 7, it fails with error:
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Bootstrap Element 100% Width
I want to create alternating 100% colored blocks. An "ideal" situation is illustrated as an attachment, as well as the current situation.
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Selecting the last value of a column
...tActiveSheet().getRange(column + "1:" + column + lastRow).getValues();
for (; values[lastRow - 1] == "" && lastRow > 0; lastRow--) {}
return values[lastRow - 1];
}
Usage:
=lastValue("G")
EDIT:
In response to the comment asking for the function to update automatically:
The best...
Is there still any reason to learn AWK?
... tools, even old fashioned ones, because I like to use the right solution for the problem.
24 Answers
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Fastest way to convert string to integer in PHP
...hilst the cast is handled directly in the interpreter's expression calculator. This may also be the reason a co-ercion is even faster.
– staticsan
Oct 27 '08 at 6:09
10
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Best way to detect that HTML5 is not supported
The standard way to deal with situations where the browser does not support the HTML5 <canvas> tag is to embed some fallback content like:
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