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Why is inserting in the middle of a linked list O(1)?
According to the Wikipedia article on linked lists , inserting in the middle of a linked list is considered O(1). I would think it would be O(n). Wouldn't you need to locate the node which could be near the end of the list?
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How to tell which version of a gem a rails app is using
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This will only work if the gem as been specified in the environment.rb file. If the developer just required it somewhere, rake gems won't work.
– John Hyland
Oct 26 '09 at 19:36
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Why do we need to install gulp globally and locally?
...ay that I need to install gulp first globally (with -g flag) and then one more time locally. Why do I need this?
7 Answers
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How can I create a copy of an Oracle table without copying the data?
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this will not replicate sequences or triggers either.
– branchgabriel
Oct 24 '08 at 17:29
16
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String concatenation vs. string substitution in Python
...tution eludes me. As the string concatenation has seen large boosts in performance, is this (becoming more) a stylistic decision rather than a practical one?
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How can I do time/hours arithmetic in Google Spreadsheet?
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When the number being returned by your formula is being formatted as a time, and you want it formatted as a plain number, change the format of the cell to a plain number format: click the cell and then click Format, Number, Normal.
Time values in Google spreadshee...
How to convert String to Long in Kotlin?
... the string as a [Long] number and returns the result.
@throws NumberFormatException if the string is not a valid
representation of a number.
2. string.toLongOrNull()
Parses the string as a [Long] number and returns the result or null
if the string is not a valid representation of a n...
Can't access RabbitMQ web management interface after fresh install
...Q server (rabbitmq-server-3.3.0-1.noarch.rpm) on a fresh Centos 5.10 VM according to the instructions on the official site.
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Test if a vector contains a given element
How to check if a vector contains a given value?
7 Answers
7
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How to access the first property of a Javascript object?
... access also other properties by indexes. Be aware tho! Object.keys return order is not guaranteed as per ECMAScript however unofficially it is by all major browsers implementations, please read https://stackoverflow.com/a/23202095 for details on this.
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