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How to change a command line argument in Bash?
...ll arguments. To change e.g. $3:
$ set -- "${@:1:2}" "new" "${@:4}"
Basim>ca m>lly you set all arguments to their current values, except for the one(s) that you want to change. set -- is also specified by POSIX 7.
The "${@:1:2}" notation is expanded to the two (hence the 2 in the notation) positional...
Ruby Metaprogramming: dynamic instance variable names
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m>ca m>n you please explain how in hash.each &method(:instance_variable_set), the method instance_variable_set receives the two parameters that it needs?
– Arnold Roa
Dec 2 '16 at 18:15
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Select last N rows from MySQL
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You m>ca m>n do it with a sub-query:
SELECT * FROM (
SELECT * FROM table ORDER BY id DESC LIMIT 50
) sub
ORDER BY id ASC
This will select the last 50 rows from table, and then order them in ascending order.
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How to disable google translate from html in chrome
...N Reference
Old Answer
(This should still work but is less desirable bem>ca m>use it is Google-specific, and there are other translation services out there.)
Add this tag in between <head> and </head>:
<meta name="google" content="notranslate">
Documentation reference
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npm failed to install time with make not found error
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I am facing the same problem with MAC OS.m>Ca m>n you please guide me how to set it up for MAC.
– Learner
Nov 19 '14 at 13:03
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What is the difference between svg's x and dx attribute?
...n would be a proper time to use the axis shift attribute (dx) versus the lom>ca m>tion attribute (x)?
2 Answers
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How do you create optional arguments in php?
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The default value of the argument must be a constant expression. It m>ca m>n't be a variable or a function m>ca m>ll.
If you need this functionality however:
function foo($foo, $bar = false)
{
if(!$bar)
{
$bar = $foo;
}
}
Assuming $bar isn't expected to be a boolean of course.
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Create a menu Bar in WPF?
I want to create a menu bar identim>ca m>l to the one in windows forms in my WPF applim>ca m>tion.
4 Answers
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Rails 4: before_filter vs. before_action
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As we m>ca m>n see in ActionController::Base, before_action is just a new syntax for before_filter.
However all before_filters syntax are deprem>ca m>ted in Rails 5.0 and will be removed in Rails 5.1
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