大约有 44,000 项符合查询结果（耗时：0.0458秒） [XML]
Base64 encoding and decoding in client-side Javascript
... base64 with the Date URI scheme. Surprise: this function urlencodes every character, so I get this malformed XML at target: %3C%3Fxml%20version%3D%271.0%27%20%3F%3E%3Csvg%20xmlns%3D%27http%...
– Dereckson
Feb 13 '13 at 19:50
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What is the difference between decodeURIComponent and decodeURI?
...arators are encoded also because they are regarded as text and not special characters.
Now back to the difference between the decode functions, each function decodes strings generated by its corresponding encode counterpart taking care of the semantics of the special characters and their handling.
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Postgresql - change the size of a varchar column to lower length
... really large table (almost 30 millions rows).
One of its columns is a varchar(255) and I would like to resize it to a varchar(40) .
Basically, I would like to change my column by running the following command:
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What's the main difference between int.Parse() and Convert.ToInt32
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Yeah, Convert.ToInt32(char) will actually return (int)value, which will turn '1' into 49. Not generally the intended functionality.
– Dale K
Oct 24 '13 at 18:28
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Facebook Callback appends '#_=_' to Return URL
...h (or even
a server-side redirect of your own) to remove the offending
characters.
Source: https://developers.facebook.com/bugs/318390728250352/
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Node.js throws “btoa is not defined” error
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The solutions posted here don't work in non-ascii characters (i.e. if you plan to exchange base64 between Node.js and a browser). In order to make it work you have to mark the input text as 'binary'.
Buffer.from('Hélló wórld!!', 'binary').toString('base64')
This gives...
In STL maps, is it better to use map::insert than []?
...<std::endl;
}
};
int Sample::_noOfObjects = 0;
int main(int argc, char* argv[])
{
Sample sample;
std::map<int,Sample> map;
map.insert( std::make_pair<int,Sample>( 1, sample) );
//map[1] = sample;
return 0;
}
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How to check if a file is a valid image file?
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A lot of times the first couple chars will be a magic number for various file formats. You could check for this in addition to your exception checking above.
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How can I remove duplicate rows?
... you can replace
MIN(RowId)
with
CONVERT(uniqueidentifier, MIN(CONVERT(char(36), MyGuidColumn)))
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Simplest way to read json from a URL in java
...tStreamReader;
import java.io.Reader;
import java.net.URL;
import java.nio.charset.Charset;
import org.json.JSONException;
import org.json.JSONObject;
public class JsonReader {
private static String readAll(Reader rd) throws IOException {
StringBuilder sb = new StringBuilder();
int cp;
...