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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...
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...
How can I wait for set of asynchronous callback functions?
...t to do something. You can do it like this by accumulating the data in an array and keeping track of when the last one has finished:
Manual Counter
var ajaxCallsRemaining = 10;
var returnedData = [];
for (var i = 0; i < 10; i++) {
doAjax(whatever, function(response) {
// success h...