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how to get the last character of a string?
...-bit integer values. If the intent of your string is to store characters, then the code above returns the last 16-bit value, which would not be pretty if it was the second part of a surrogate pair. But again, what exactly do you mean by "UTF-8 string"? UTF-8 is an encoding scheme that might make ...
Center image using text-align center?
...? You say 'text-align' applies to blocks and not inlines, which I believe, then you literally change it to a block element yet avoid using text-align. I mean your code works, but that paragraph needs to be completely reworded, imo.
– Octopus
Aug 18 '16 at 4:19
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How to communicate between iframe and the parent site?
..._IFRAME') {
console.log('Parent received successfully.')
}
}
Then from parent say back.
window.onmessage = (event) => {
event.source.window.postMessage('GOT_YOU_IFRAME', '*')
}
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Android Spinner : Avoid onItemSelected calls during initialization
...
This works because you first set the selection, and then add a listener, but the listener won't be called because you already chosen this selection before. Only new selections will call the listener.
– android developer
Jun 1 '17 at 7:21
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How to select option in drop down protractorjs e2e tests
...(optionNum){
var options = element.all(by.tagName('option'))
.then(function(options){
options[optionNum].click();
});
}
};
I wrote a blog post if you want more detail, it also covers verifying the text of the selected option in a dropdown: http://technpol.wordpress.com...
How do you clear a stringstream variable?
...am, e.g. if a file stream has the error state set to eofbit (end-of-file), then calling clear() will set the error state back to goodbit (no error).
For clearing the contents of a stringstream, using:
m.str("");
is correct, although using:
m.str(std::string());
is technically more efficient, ...
How to pass password automatically for rsync SSH command?
...porary file and include it like this: sshpass -p`cat .password` ssh [...]. Then protect your .password file by chmod 400 .password to make sure only your user can read it.
– lutuh
Aug 6 '15 at 14:20
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Remove all whitespace in a string
...l whitespace characters (space, tab, newline, and so on) you can use split then join:
sentence = ''.join(sentence.split())
or a regular expression:
import re
pattern = re.compile(r'\s+')
sentence = re.sub(pattern, '', sentence)
If you want to only remove whitespace from the beginning and end y...
Code block in numbered list (Wiki syntax)
...rence to a number is subject to change as the steps are edited - and this then becomes another maintenance issue.
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Redirecting from HTTP to HTTPS with PHP
... what you say. If the second condition is true ($_SERVER['HTTPS'] == 'on') then the first condition will have to be TRUE as well (of course that server variable is set, because it contains a value!)
– OMA
Sep 24 '18 at 11:11
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