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The ondragstart event triggers when dragging of an element begins.You can try to run the following code to learn how to implement ondragstart JavaScript event − Example Live Demo .drag { float: left; width: 100px; height: 35px; ... Read More
The C++11 features supported by Intel are available as an official guide in their docs. You can check these features out on https://software.intel.com/en-us/articles/c0x-features-supported-by-intel-c-compiler.
Presence of a certain file in the computer can be verified by two ways using Python code. One way is using isfile() function of os.path module. The function returns true if file at specified path exists, otherwise it returns false. >>> import os >>> os.path.isfile("d:\Package1\package1\fibo.py") True >>> os.path.isfile("d:/Package1/package1/fibo.py") True >>> os.path.isfile("d:onexisting.txt") Note that to use backslash in path, two backslashes have to be used to escape out of Python string. Other way is to catch IOError exception that is raised when open() function has string argument corresponding to non-existing file. try: fo = open("d:onexisting.txt", ... Read More
The built-in functions repr() and str() respectively call object.__repr__(self) and object.__str__(self) methods. First function computes official representation of the object, while second returns informal representation of the object. Result of both functions is same for integer object. >>> x = 1 >>> repr(x) '1' >>> str(x) '1' However, it is not the case for string object. >>> x = "Hello" >>> repr(x) "'Hello'" >>> str(x) 'Hello' Return value of repr() of a string object can be evaluated by eval() function and results in valid string object. However, result of str() can not be evaluated. ... Read More
If you want another code while working in the same code document, then use comments. Comment the previous code and add the alternative code to test it. After the testing completes, uncomment the previous code. In this way, you can test both the codes. While using comments follow the below rules to create valid comments − Any text between a // and the end of a line is treated as a comment and is ignored by JavaScript. Any text between the characters /* and */ is treated as a comment. This may span multiple lines. JavaScript also recognizes the ... Read More
Yes! You can initialize a blank final variable in constructor or instance initialization block.
To offset an outline, use the outlineOffsetproperty. It allows you to draw the outline beyond the border edge. You can try to run the following code to offset an outline and draw it beyond the border edge with JavaScript. Example Live Demo #box { width: 450px; background-color: orange; ... Read More
https://www.tutorialspoint.com/javaregex/javaregex_capturing_groups.htm
Java Regex Capturing Groups
As we know that SELECT clause is used to show all the rows and columns hence SELECT clause is evaluated in the last by the database server.