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How to invert a grep expression
... be matched. Those who are looking to invert the return code (i.e. succeed if all of the lines do not match the pattern, rather than at least one) should use ! grep. This finds use in conditional expressions, e.g.: if ! ls | grep -qE ".(\.exe)$"; then echo No .exe files in $(pwd); fi.
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Is there auto type inferring in Java?
... is not a keyword! From the JLS: "var is not a keyword, but rather an identifier with special meaning as the type of a local variable declaration". Thus, unlike keywords, there is nothing to stop you calling a variable or a method "var".
– Klitos Kyriacou
Dec 2...
How to remove all white spaces in java [duplicate]
...ts the error in your program.
Moreover you can do this in one single line if you are ok in using regular expression.
a.replaceAll("\\s+","");
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Hiding textarea resize handle in Safari
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What if I want to show it on hover after I've set resize:none ?
– Michael Forrest
Sep 24 '10 at 11:33
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Html.RenderPartial() syntax with Razor
... Why do you prefer using Html.RenderPartial instead of Html.Partial? If you, from some reason, want/need to go with Html.RenderPartial, there is no workaround - that's the syntax.
– Ofer Zelig
Aug 8 '11 at 11:06
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Is there a “default” MIME type?
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The least specific official MIME type is application/octet-stream. Without any additional information, it says "here is a bunch of bytes, hopefully there is an application over on your end which knows what to do with them". Sometimes the...
How do I change the background color of a plot made with ggplot2
...en ggplot is called in future, without masking:
theme_set(theme_jack())
If you want to change an element of the currently set theme:
theme_update(plot.background = element_rect(fill="pink"), axis.title.x = element_text(colour = "red"))
To store the current default theme as an object:
theme_pi...
Block commenting in Ruby
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it goes wrong if there is some <% %> open tags in the block of commented code. Maybe there is any other way to do this?
– Gediminas
Jun 12 '13 at 19:21
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How do I access the host machine itself from the iPhone simulator
...arburton no any seperate device will require your computers IPv4 address. (If both devices are not on the same network it's more complicated)
– cameloper
Apr 13 '18 at 10:43
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How to remove text from a string?
...n what the regex does? I dont get it why it replaces string except numbers if 0-9 was indicated.
– rotimi-best
May 14 '19 at 14:30
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