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What is the most efficient way to concatenate N arrays?

...w array that concatenates two existing arrays, it appears concat() is generally faster. For the case of concatenating an array onto an existing array in place, push() is the way to go. I updated my answer. – Tim Down Apr 22 '12 at 22:12 ...
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How to avoid java.util.ConcurrentModificationException when iterating through and removing elements

...t of values you wish to remove, adding to that list within the loop, then call originalList.removeAll(valuesToRemove) at the end Use the remove() method on the iterator itself. Note that this means you can't use the enhanced for loop. As an example of the second option, removing any strings with ...
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Install NPM into home directory with distribution nodejs package (Ubuntu)

... up a package root in my homedir to hold the Node "global" packages: $ NPM_PACKAGES="$HOME/.npm-packages" $ mkdir -p "$NPM_PACKAGES" Set NPM to use this directory for its global package installs: $ echo "prefix = $NPM_PACKAGES" >> ~/.npmrc Configure your PATH and MANPATH to see commands i...
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Difference between two dates in Python

... objects and take the days member. from datetime import datetime def days_between(d1, d2): d1 = datetime.strptime(d1, "%Y-%m-%d") d2 = datetime.strptime(d2, "%Y-%m-%d") return abs((d2 - d1).days) share ...
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C/C++ maximum stack size of program

...presents graph nodes) So assuming worst case, depth of recursive function calls can go upto 10000 with each call taking upto say 20 bytes. So is it feasible means is there a possibility of stackoverflow? ...
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How to present popover properly in iOS 8

... you talk to the view controller inside of it to set the content size, by calling the property preferredContentSize share | improve this answer | follow | ...
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Regular expression to search for Gadaffi

... Libyan leader’s name spelled so many different ways?. EDIT To match all the names in the article you've mentioned later, this should match them all. Let's just hope it won't match a lot of other stuff :D \b(Kh?|Gh?|Qu?)[aeu](d['dt]?|t|zz|dhd)h?aff?[iy]\b ...
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How to copy a collection from one database to another in MongoDB

...so some documents may incur type changes. mongodump/mongorestore are generally the better approach. – Stennie Jul 19 '12 at 6:17 ...
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How do you check if a variable is an array in JavaScript? [duplicate]

...structor === Array This is the fastest method on Chrome, and most likely all other browsers. All arrays are objects, so checking the constructor property is a fast process for JavaScript engines. If you are having issues with finding out if an objects property is an array, you must first check if...
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What is the meaning of the prefix N in T-SQL statements and when should I use it?

...efix - I wasn't able to fix it for two days. My database collation is SQL_Latin1_General_CP1_CI_AS. It has a table with a column called MyCol1. It is an Nvarchar This query fails to match Exact Value That Exists. SELECT TOP 1 * FROM myTable1 WHERE MyCol1 = 'ESKİ' // 0 result using pref...