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Max length UITextField
...ollowing implementation of textField(_:shouldChangeCharactersIn:replacementString:) method that is part of the UITextFieldDelegate protocol:
func textField(_ textField: UITextField, shouldChangeCharactersIn range: NSRange, replacementString string: String) -> Bool {
guard let textFieldText =...
Split value from one field to two
...
Unfortunately MySQL does not feature a split string function. However you can create a user defined function for this, such as the one described in the following article:
MySQL Split String Function by Federico Cargnelutti
With that function:
DELIMITER $$
CREATE ...
Remove leading or trailing spaces in an entire column of data
...ong - TRIM appears to be eliminating duplicated spaces in the middle of my string. Is there a way to only trim off leading and trailing spaces?
– Shavais
Oct 16 '15 at 15:17
...
C++ : why bool is 8 bits long?
...or booleans, in a way. I seem to remember Pascal implementing sets as bit strings. That is, for the following set:
{1, 2, 5, 7}
You might have this in memory:
01100101
You can, of course, do something similar in C / C++ if you want. (If you're keeping track of a bunch of booleans, it could ...
Android: Test Push Notification online (Google Cloud Messaging) [closed]
...an send both GCM and APNS notifications and also support JSON messages for extra arguments. Following are the links to the testers.
GCM Tester
APNS Tester
Please let me know if you have any questions or face issues using it.
...
How to read a file without newlines?
...ing file one row at the time. Removing unwanted chars with from end of the string str.rstrip(chars)
with open(filename, 'r') as fileobj:
for row in fileobj:
print( row.rstrip('\n') )
see also str.strip([chars]) and str.lstrip([chars])
(python >= 2.0)
...
Get IP address of visitors using Flask for Python
...
from flask import request
from flask import jsonify
@app.route("/get_my_ip", methods=["GET"])
def get_my_ip():
return jsonify({'ip': request.remote_addr}), 200
For more information see the Werkzeug documentation.
sh...
How to filter by IP address in Wireshark?
...
Match destination: ip.dst == x.x.x.x
Match source: ip.src == x.x.x.x
Match either: ip.addr == x.x.x.x
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Why is a boolean 1 byte and not 1 bit of size?
...Obviously, such a pointer would not be convertible to void* because of the extra storage requirement for the bit number.
– Maxim Egorushkin
Jan 7 '11 at 17:10
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How do I match any character across multiple lines in a regular expression?
... base R default engine with no perl=TRUE, for base R with perl=TRUE or for stringr/stringi patterns, use the (?s) inline modifier) (demo) also treat . the same way.
However, most POSIX based tools process input line by line. Hence, . does not match the line breaks just because they are not in sco...