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How to convert string into float in JavaScript?
...to do this? :p
var str = '3.8';ie
alert( +(str) + 0.2 );
+(string) will cast string into float.
Handy!
So in order to solve your problem, you can do something like this:
var floatValue = +(str.replace(/,/,'.'));
share...
Difference between two dates in MySQL
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If you are working with DATE columns (or can cast them as date columns), try DATEDIFF() and then multiply by 24 hours, 60 min, 60 secs (since DATEDIFF returns diff in days). From MySQL:
http://dev.mysql.com/doc/refman/5.5/en/date-and-time-functions.html
for example:
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List to array conversion to use ravel() function
...your (nested, I s'pose?) list, you can do that directly, numpy will do the casting for you:
L = [[1,None,3],["The", "quick", object]]
np.ravel(L)
# array([1, None, 3, 'The', 'quick', <class 'object'>], dtype=object)
Also worth mentioning that you needn't go through numpy at all.
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Replace only some groups with Regex
...iousCaptureEnd = 0;
foreach (var capture in group.Captures.Cast<Capture>())
{
var currentCaptureEnd =
capture.Index + capture.Length - m.Index;
var currentCaptureLength =
cap...
How to get IntPtr from byte[] in C#
... rather slow. Faster is to copy the bytes in a for loop. Even faster is to cast the byte array to a ulong array, copy as much ulong as fits in the byte array, then copy the possible remaining 7 bytes (the trail that is not 8 bytes aligned). Fastest is to pin the byte array in a fixed statement as pr...
Get ID of last inserted document in a mongoDB w/ Java driver
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To avoid casting from Object to ObjectId, given a com.mongodb.client.MongoCollection collection and a org.bson.Document doc, you can do the following:
collection.insert(doc);
ObjectId id = doc.getObjectId("_id");
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Format bytes to kilobytes, megabytes, gigabytes
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i had to cast the $size to a double to get it to work. heres what worked for me: function formatBytes($size, $precision = 2){ $base = log(floatval($size)) / log(1024); $suffixes = array('', 'k', 'M', 'G', 'T'); return round...
How to convert a String to CharSequence?
...xcept that you can't assign a CharSequence to a String without an explicit cast.
– gustafc
Sep 8 '09 at 6:26
1
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How can I find the number of days between two Date objects in Ruby?
...subtracting two Date objects gives you a Rational that you may need to typecast into an integer, as with (endDate - beginDate).to_i
– MusikAnimal
Jun 24 '15 at 4:17
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Find index of a value in an array
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Is casting the return value accepted practice or is there a way to define the type of word?
– initialZero
Nov 19 '09 at 17:26
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