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Go: panic: runtime error: invalid memory address or nil pointer dereference
When running my Go program, it panics and returns the following:
4 Answers
4
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Two sets of parentheses after function call
I was looking how filters works in Angularjs and I saw that we need to send 2 sets of parentheses.
3 Answers
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what is .netrwhist?
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netrw is a kind of vim plugin/script which supports reading and writing files across networks. .netrwhist is a history file which maintains all the directories that were modified. So whenever you modify the contents of ~/.vim it adds one entry in .netrwhist
A sample .netrwhist is as ...
There is no ViewData item of type 'IEnumerable' that has the key 'xxx'
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Ok, so the answer was derived from some other posts about this problem and it is:
If your ViewData contains a SelectList with the same name as your DropDownList i.e. "submarket_0", the Html helper will automatically populate your DropDownList with that data if you don't specify the 2nd paramete...
How do I best silence a warning about unused variables?
I have a cross platform application and in a few of my functions not all the values passed to functions are utilised. Hence I get a warning from GCC telling me that there are unused variables.
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How can I convert ereg expressions to preg in PHP?
...c, a backslash or a whitespace character. The most used are generally ~, / and #.
You can also use matching brackets:
preg_match('[^hello]', $str);
preg_match('(^hello)', $str);
preg_match('{^hello}', $str);
// etc
If your delimiter is found in the regular expression, you have to escape it:
ere...
What's the meaning of interface{}?
I'm new to interfaces and trying to do SOAP request by github
6 Answers
6
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How do I simulate a hover with a touch in touch enabled browsers?
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OK, I've worked it out! It involves changing the CSS slightly and adding some JS.
Using jQuery to make it easy:
$(document).ready(function() {
$('.hover').on('touchstart touchend', function(e) {
e.preventDefault();
$(this).toggleClass('hover_effect');
});
});
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How to list empty folders in linux
In Linux how do I check all folders in a directory and output the name of all directories that are empty to a list.
1 Answe...
See “real” commit date in github (hour/day)
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Hover your mouse over the 2 years ago and you'll get the timestamp.
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