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NoSql Crash Course/Tutorial [closed]
...om here, Wikipedia, etc). This could be due to the lack of concrete and uniform definition of what it is (more of a paradigm than concrete implementation), but I'm struggling to wrap my head around how I would go about designing a system that would use it or how I would implement it in my system. ...
What does “export” do in shell programming? [duplicate]
...there is no output from the grep command. Of course, feel free to rollback if you think this loses readability
– fedorqui 'SO stop harming'
Apr 26 '15 at 18:53
1
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Check whether a path is valid
I am just wondering: I am looking for a way to validate if a given path is valid.
(Note: I do not want to check if a file is existing! I only want to proof the validity of the path - So if a file could possibly exists at the location) .
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How to remove the first character of string in PHP?
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Be aware of unicode. If you're dealing with an arbitrary string (e.g. "Ål <- danish for eel"), you should use mb_substr and specify the encoding.
– Thomas Jensen
Jun 17 '12 at 11:22
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Determine the number of NA values in a column
... @user3274289: although you'll usually want na.rm=TRUE, because otherwise if df$col contains NAs, sum will return NA.
– jbaums
Jun 4 '14 at 2:30
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Convert Json Array to normal Java list
...ayList<String>();
JSONArray jsonArray = (JSONArray)jsonObject;
if (jsonArray != null) {
int len = jsonArray.length();
for (int i=0;i<len;i++){
list.add(jsonArray.get(i).toString());
}
}
share...
Add up a column of numbers at the Unix shell
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. . .| x=$(echo <(cat)); echo $((0+${x// /+}+0)) if you want all bash all the time:
– qneill
Apr 3 '15 at 23:31
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Convert integer to binary in C#
...y similar method to convert binary to decimal?
– kashif
Jan 24 '13 at 8:26
32
@kashif int value =...
CSS Box Shadow Bottom Only [duplicate]
... +4. * The third value sets a blur effects of 2px. (Makes the shadow non-uniform). * The fourth value sets a spread to -2px. (Contract the shadow 2px.) This will cause the shadow to be 4px less wide than the element you're shadowing, so set the last value to 0 if you just want a plain underline.
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Mix Razor and Javascript code
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what about if this code is in a bundle?? can I write code inside of a javascript file??
– ncubica
Jan 28 '13 at 5:06
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