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What does the plus sign do in '+new Date'
...rstanding-loose-typing-in.html
http://www.jibbering.com/faq/faq_notes/type_convert.html
Other examples:
>>> +new Date()
1224589625406
>>> +"3"
3
>>> +true
1
>>> 3 == "3"
true
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In Python, how do I read the exif data for an image?
... return data[key]
return None
@staticmethod
def convert_to_degress(value):
"""Helper function to convert the GPS coordinates
stored in the EXIF to degress in float format"""
d0 = value[0][0]
d1 = value[0][1]
d = float(d0) / float(d1)...
Create a hexadecimal colour based on a string with JavaScript
....toUpperCase();
return "00000".substring(0, 6 - c.length) + c;
}
To convert you would do:
intToRGB(hashCode(your_string))
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Best way to convert an ArrayList to a string
I have an ArrayList that I want to output completely as a String. Essentially I want to output it in order using the toString of each element separated by tabs. Is there any fast way to do this? You could loop through it (or remove each element) and concatenate it to a String but I think this wi...
Remove leading zeros from a number in Javascript [duplicate]
...
Now, lets consider the number string '099999999999999999999' and try to convert it using the above methods
const numString = '099999999999999999999';
let parsedNumber = parseInt(numString, 10);
console.log(`parseInt(radix=10) result: ${parsedNumber}`);
parsedNumber = Number(numString)...
SQL statement to select all rows from previous day
...
To get the "today" value in SQL:
convert(date, GETDATE())
To get "yesterday":
DATEADD(day, -1, convert(date, GETDATE()))
To get "today minus X days": change the -1 into -X.
So for all yesterday's rows, you get:
select * from tablename
where date &g...
How to parse/format dates with LocalDateTime? (Java 8)
...o apply DateTimeFormatter since LocalDateTime is already prepared for it:
Convert LocalDateTime to Time Zone ISO8601 String
LocalDateTime ldt = LocalDateTime.now();
ZonedDateTime zdt = ldt.atZone(ZoneOffset.UTC); //you might use a different zone
String iso8601 = zdt.toString();
Convert from ISO...
“Java DateFormat is not threadsafe” what does this leads to?
... return new SimpleDateFormat("yyyyMMdd");
}
};
public Date convert(String source) throws ParseException{
Date d = df.get().parse(source);
return d;
}
}
Here is a good post with more details.
shar...
Unique fields that allow nulls in Django
... return value
if value is None:
# If db has NULL, convert it to ''.
return ''
# Otherwise, just return the value.
return value
def get_prep_value(self, value):
"""
Catches value right before sending to db.
"""
...
PHP expresses two different strings to be the same [duplicate]
...string or the comparison involves
numerical strings, then each string is converted to a number and the
comparison performed numerically.
http://php.net/manual/en/language.operators.comparison.php
Attention:
What about the behavior in javascript which also has both == and ===?
The answer is ...