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How do I fix the “You don't have write permissions into the /usr/bin directory” error when installin
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only doing that solved for me a similar problem with the same error message
– Rich Stone
Oct 26 '18 at 18:59
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How do you display JavaScript datetime in 12 hour AM/PM format?
How do you display a JavaScript datetime object in the 12 hour format (AM/PM)?
25 Answers
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How do I determine the size of an object in Python?
...type of object.
All built-in objects will return
correct results, but this does not
have to hold true for third-party
extensions as it is implementation
specific.
Only the memory consumption directly attributed to the object is
accounted for, not the memory consumption of objects it refers to.
The d...
How to make a function wait until a callback has been called using node.js
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The "good node.js /event driven" way of doing this is to not wait.
Like almost everything else when working with event driven systems like node, your function should accept a callback parameter that will be invoked when then computation is complete. The caller sho...
How do I programmatically set the value of a select box element using JavaScript?
..., '11')
function selectElement(id, valueToSelect) {
let element = document.getElementById(id);
element.value = valueToSelect;
}
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fo...
What are the dark corners of Vim your mom never told you about? [closed]
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Might not be one that 99% of Vim users don't know about, but it's something I use daily and that any Linux+Vim poweruser must know.
Basic command, yet extremely useful.
:w !sudo tee %
I often forget to sudo before editing a file I don't have write permissions...
How do you discover model attributes in Rails?
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To get the associations too you can do: Model.reflect_on_all_associations.map(&:name)
– vasilakisfil
Nov 28 '14 at 9:27
1
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How do I use boolean variables in Perl?
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@BlueWaldo: you can also use cmp and <=> when comparing and assigning the results of the comparison to a scalar. $var = $var1 cmp $var2; 'cmp' and '<=>' (used for numeric comparisons) returns -1, 0, or 1 if left argumen...
How does java do modulus calculations with negative numbers?
Am I doing modulus wrong? Because in Java -13 % 64 is supposed to evaluate to -13 but I get 51 .
14 Answers
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window.close and self.close do not close the window in Chrome
The issue is that when I invoke window.close() or self.close() it doesn't close the window. Now there seems to be a belief that in Chrome you can't close by script any window that is not script created. That is patently false but regardless it is supposed to still do it, even if it requires to p...