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Rename a file in C#
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In the File.Move method, this won't overwrite the file if it is already exists. And it will throw an exception.
So we need to check whether the file exists or not.
/* Delete the file if exists, else no exception thrown. */
File.Delete(newFileName); // Delete the existing file if exists
F...
Execute JavaScript using Selenium WebDriver in C#
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the nuget package Selenium.Support already contains an extension method to help with this. Once it is included, one liner to executer script
Driver.ExecuteJavaScript("console.clear()");
or
string result = Driver.ExecuteJavaScript<string>("console....
Should we @Override an interface's method implementation?
...r than overriding base methods)? A big plus for me is that it aids sets a readers expectations of how and by what a particular method might be used.
– Joe Lee-Moyet
May 27 '14 at 17:13
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How are echo and print different in PHP? [duplicate]
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As the PHP.net manual suggests, take a read of this discussion.
One major difference is that echo can take multiple parameters to output. E.g.:
echo 'foo', 'bar'; // Concatenates the 2 strings
print('foo', 'bar'); // Fatal error
If you're looking to evaluate...
In Java, what is the best way to determine the size of an object?
I have an application that reads a CSV file with piles of data rows. I give the user a summary of the number of rows based on types of data, but I want to make sure that I don't read in too many rows of data and cause OutOfMemoryError s. Each row translates into an object. Is there an easy way t...
Java: convert List to a String
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Yes, it is thread safe. The only state saved in a joiner is the separator (which is final). Everything that I've seen in Guava, where I used to use an Apache Commons equivalent has been so much better (read: cleaner, faster, safer and jus...
Use of “instanceof” in Java [duplicate]
...bclass, or an instance of a class that implements a particular interface.
Read more from the Oracle language definition here.
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Check if option is selected with jQuery, if not select a default
...on>
</select>
<script type="text/javascript">
$(document).ready(function() {
if (!$("#mySelect option:selected").length) {
$("#mySelect option[value='3']").attr('selected', 'selected');
}
});
</script>
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Add horizontal scrollbar to html table
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According to my own attempts and everything else I've read on the internet this simply won't work. You can overflow a wrapper element, sure, but not the table itself.
– bloudermilk
Dec 22 '14 at 15:03
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How can I show line numbers in Eclipse?
...in the Editor for that shortcut to work, but that is pretty obvious if one reads the section title in the referred article. :-)
– Björn Larsson
Sep 27 '18 at 10:24
add a comm...