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PHP & mySQL: Year 2038 Bug: What is it? How to solve it?
...y platform yet.
Here is a process for altering a database table column to convert TIMESTAMP to DATETIME. It starts with creating a temporary column:
# rename the old TIMESTAMP field
ALTER TABLE `myTable` CHANGE `myTimestamp` `temp_myTimestamp` int(11) NOT NULL;
# create a new DATETIME column of ...
Python import csv to list
...e as opposed to text mode. On some systems text mode means that \n will be convertes to platform-specific new line when reading or writing. See docs.
– Maciej Gol
May 24 '15 at 8:12
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How to save an HTML5 Canvas as an image on a server?
... context.strokeStyle = 'blue';
context.stroke();
</script>
Convert canvas image to URL format (base64)
var dataURL = canvas.toDataURL();
Send it to your server via Ajax
$.ajax({
type: "POST",
url: "script.php",
data: {
imgBase64: dataURL
}...
Entity Framework DateTime and UTC
...n't do anything when saving. You'll still have to have the value properly converted to UTC before you try to save it. But it does allow you to set the kind when retrieving, which allows it to be serialized as UTC, or converted to other time zones with TimeZoneInfo.
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Meaning of -
...stem to interpret those bytes as actual characters (and so display them or convert them to another encoding), it needs to know the encoding used in the XML.
Since most common encodings are compatible with ASCII, as far as basic alphabetic characters and symbols go, in these cases, the declaration i...
C# Float expression: strange behavior when casting the result float to int
...f keeping the value 6.2f * 10 in a high precision intermediate form before converting to int. If it does, then the result is 61. If it does not, then the result is 62.
In the second example, the explicit assignment to float forces the rounding to take place before the conversion to integer.
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Failed to execute 'btoa' on 'Window': The string to be encoded contains characters outside of the La
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I'd just run the code if I were you. escape converts string in the one that does only contain url valid characters. That prevents the errors.
– Tomáš Zato - Reinstate Monica
Nov 24 '14 at 22:37
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store and retrieve a class object in shared preference
...
we can use Outputstream to output our Object to internal memory. And convert to string then save in preference. For example:
mPrefs = getPreferences(MODE_PRIVATE);
SharedPreferences.Editor ed = mPrefs.edit();
ByteArrayOutputStream arrayOutputStream = new ByteArrayOutputStream();
...
Calculate the center point of multiple latitude/longitude coordinate pairs
...on of the approach recommended there for spherical coordinates would be:
Convert each lat/long pair into a unit-length 3D vector.
Sum each of those vectors
Normalise the resulting vector
Convert back to spherical coordinates
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How do I check if a string is unicode or ascii?
... of the type, instead of comparing the type itself. Here's an example:
# convert bytes (python 3) or unicode (python 2) to str
if str(type(s)) == "<class 'bytes'>":
# only possible in Python 3
s = s.decode('ascii') # or s = str(s)[2:-1]
elif str(type(s)) == "<type 'unicode'>"...