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How to insert a text at the beginning of a file?
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Use subshell:
echo "$(echo -n 'hello'; cat filename)" > filename
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Writing string to a file on a new line every time
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Another solution that writes from a list using fstring
lines = ['hello','world']
with open('filename.txt', "w") as fhandle:
for line in lines:
fhandle.write(f'{line}\n')
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How to convert string to char array in C++?
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Try this way it should be work.
string line="hello world";
char * data = new char[line.size() + 1];
copy(line.begin(), line.end(), data);
data[line.size()] = '\0';
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Swift performSelector:withObject:afterDelay: is unavailable [duplicate]
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hello I used your code in my project, thought you might be interested: github.com/goktugyil/CozyLoadingActivity
– Esqarrouth
Jun 4 '15 at 15:26
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How to Add a Dotted Underline Beneath HTML Text
...derline; text-underline-position: under; text-decoration-style: dotted">Hello World!</h2>
Please note that without text-underline-position: under; you still will have a dotted underline but this property will give it more breathing space.
This is assuming you want to embed everything ins...
Jquery: how to trigger click event on pressing enter key
...tion() {
$('input[name="butAssignProd"]').click(function() {
alert('Hello...!');
});
//press enter on text area..
$('#txtSearchProdAssign').keypress(function(e) {
var key = e.which;
if (key == 13) // the enter key code
{
$('input[name = butAssignProd]').click();
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How to create a jQuery function (a new jQuery method or plugin)?
... the Docs:
(function( $ ){
$.fn.myfunction = function() {
alert('hello world');
return this;
};
})( jQuery );
Then you do
$('#my_div').myfunction();
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How to remove all subviews of a view in Swift?
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Hello, try the following although there is probably a much more elegant way to do this: let subViewsArray: Array = (parentView.subviews as NSArray).copy() as Array<NSView>
– Adam Richards
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How can I programmatically create a new cron job?
...the editor to tee command:
export EDITOR="tee"
echo "0 * * * * /bin/echo 'Hello World'" | crontab -e
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Full examples of using pySerial package [closed]
...port
print ser.portstr # check which port was really used
ser.write("hello") # write a string
ser.close() # close port
use https://pythonhosted.org/pyserial/ for more examples
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