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How to reference a file for variables using Bash?
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and to restore arrays, you have to store each array entry value separatedly (not the full array single line from declare -p), would be like someArray[3]="abc", and so on...
– Aquarius Power
Sep 26 '16 ...
How can I escape white space in a bash loop list?
...lt; <(find test -mindepth 1 -type d -print0)
You can also populate an array from find, and pass that array later:
# this is safe
declare -a myarray
while IFS= read -r -d '' n; do
myarray+=( "$n" )
done < <(find test -mindepth 1 -type d -print0)
printf '%q\n' "${myarray[@]}" # printf is...
How to implement a unique index on two columns in rails
... @FrançoisBeausoleil %w(user_id content_id) in ruby just creates an array of strings, it's not special to rails. You can do the same with "user_id content_id".split which is still creating an array of strings. I am sure you know this, this comment is just so other readers don't relate this to...
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...辆车，几百万司机，永远是无法撼动的。
当用户习惯使用软件叫车后，又推出了专车服务，专车直接威胁了出租车公司的生存，这下出租车公司才反应过来，想要打击专车服务。但是，这种趋势完全挡不住。
一个月前，我...
Find object in list that has attribute equal to some value (that meets any condition)
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A simple example:
We have the following array
li = [{"id":1,"name":"ronaldo"},{"id":2,"name":"messi"}]
Now, we want to find the object in the array that has id equal to 1
Use method next with list comprehension
next(x for x in li if x["id"] == 1 )
Use li...
Is there a standard function to check for null, undefined, or blank variables in JavaScript?
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Except if value is an array. The interpretation of truthy could be misleading. In that case we should be checking value.length != 0 for a non-empty array.
– user
Apr 18 '14 at 21:06
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What is the meaning of the 'g' flag in regular expressions?
...g makes the RegExp search for a pattern throughout the string, creating an array of all occurrences it can find matching the given pattern.
So the difference between /.+/g and /.+/ is that the g version will find every occurrence instead of just the first.
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How to show full object in Chrome console?
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this worked perfectly for me:
for(a in array)console.log(array[a])
you can extract any array created in console for find/replace cleanup and posterior usage of this data extracted
share
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How to filter Pandas dataframe using 'in' and 'not in' like in SQL
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If you're actually dealing with 1-dimensional arrays (like in you're example) then on you're first line use a Series instead of a DataFrame, like @DSM used: df = pd.Series({'countries':['US','UK','Germany','China']})
– TomAugspurger
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Does Go have “if x in” construct similar to Python?
Without iterating over the entire array, how can I check if x in array using Go? Does the language have a construct?
7 A...