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Easy interview question got harder: given numbers 1..100, find the missing number(s) given em>x m>actly k
I had an interesting job interview em>x m>perience a while back. The question started really easy:
47 Answers
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Is object empty? [duplicate]
...(hasOwnProperty.call(obj, key)) return false;
}
return true;
}
Em>x m>amples:
isEmpty(""), // true
isEmpty(33), // true (arguably could be a TypeError)
isEmpty([]), // true
isEmpty({}), // true
isEmpty({length: 0, custom_property: []}), // true
isEmpty("Hello"), // false
isEmpty([1,2,3]), //...
Can you supply arguments to the map(&:method) syntam>x m> in Ruby?
..., [12, 14, 16, 18, 20]]
Here is a conversation I had with @ArupRakshit em>x m>plaining it further:
Can you supply arguments to the map(&:method) syntam>x m> in Ruby?
As @amcaplan suggested in the comment below, you could create a shorter syntam>x m>, if you rename the with method to call. In this case, r...
How are virtual functions and vtable implemented?
... that is how most compilers implement virtual functions.
Does the vtable em>x m>ist for all objects, or only those that have at least one virtual function?
I believe the answer here is "it depends on the implementation" since the spec doesn't require vtables in the first place. However, in practice, I ...
How to import multiple .csv files at once?
...-your current working directory--and that all of them have the lower-case em>x m>tension .csv.
If you then want to combine those data frames into a single data frame, see the solutions in other answers using things like do.call(rbind,...), dplyr::bind_rows() or data.table::rbindlist().
If you really wa...
“No such file or directory” error when em>x m>ecuting a binary
I was installing a binary Linum>x m> application on Ubuntu 9.10 m>x m>86_64. The app shipped with an old version of gzip (1.2.4), that was compiled for a much older kernel:
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How to set transform origin in SVG
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To rotate use transform="rotate(deg, cm>x m>, cy)", where deg is the degree you want to rotate and (cm>x m>, cy) define the centre of rotation.
For scaling/resizing, you have to translate by (-cm>x m>, -cy), then scale and then translate back to (cm>x m>, cy). You can do this with ...
Convert integer to hem>x m>adecimal and back again
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// Store integer 182
int intValue = 182;
// Convert integer 182 as a hem>x m> in a string variable
string hem>x m>Value = intValue.ToString("m>X m>");
// Convert the hem>x m> string back to the number
int intAgain = int.Parse(hem>x m>Value, System.Globalization.NumberStyles.Hem>x m>Number);
from http://www.geekpedia.com/KB...
git reset --hard HEAD leaves untracked files behind
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Also -m>x m> if you want to remove your .gitignored files and get back to a pristine state.
– jtdubs
Dec 1 '10 at 19:45
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When to encode space to plus (+) or %20?
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+ means a space only in application/m>x m>-www-form-urlencoded content, such as the query part of a URL:
http://www.em>x m>ample.com/path/foo+bar/path?query+name=query+value
In this URL, the parameter name is query name with a space and the value is query value with a...