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Is Big O(logn) log base e?
For binary search tree type of data structures, I see the Big O notation is typically noted as O(logn). With a lowercase 'l' in log, does this imply log base e (n) as described by the natural logarithm? Sorry for the simple question but I've always had trouble distinguishing between the different...
How to disable scrolling temporarily?
...nction preventDefault(e) {
e.preventDefault();
}
function preventDefaultForScrollKeys(e) {
if (keys[e.keyCode]) {
preventDefault(e);
return false;
}
}
// modern Chrome requires { passive: false } when adding event
var supportsPassive = false;
try {
window.addEventListener("test", n...
Converting camel case to underscore case in ruby
.... Also, I don't think you even need to include self., or at least it works for me under Ruby 1.9.3.
– Gus Shortz
Jul 17 '13 at 15:39
...
Getting the caller function name inside another function in Python? [duplicate]
...get the info you want. Its stack method returns a list of frame records.
For Python 2 each frame record is a list. The third element in each record is the caller name. What you want is this:
>>> import inspect
>>> def f():
... print inspect.stack()[1][3]
...
>>> def...
How to backup a local Git repository?
...oming all suggestions and pull request on github.
#!/usr/bin/env ruby
#
# For documentation please sea man git-backup(1)
#
# TODO:
# - make it a class rather than a function
# - check the standard format of git warnings to be conform
# - do better checking for git repo than calling git status
# - i...
How to efficiently count the number of keys/properties of an object in JavaScript?
... BTW... just ran some tests... this method runs in O(n) time. A for loop isn't much worse than this method. ** sad face ** stackoverflow.com/questions/7956554/…
– BMiner
Oct 31 '11 at 16:58
...
What do linkers do?
...rogram that does anything useful will need to reference other files. In C, for example, a simple program to print your name to the screen would consist of:
printf("Hello Kristina!\n");
When the compiler compiled your program into an obj file, it simply puts a reference to the printf function. The...
How to take the first N items from a generator or list in Python? [duplicate]
...
To create copies of the generator before exhausting it, you can also use itertools.tee, e.g.: generator, another_copy = itertools.tee(generator)
– Massood Khaari
Jun 22 at 19:12
...
Best algorithm for detecting cycles in a directed graph [closed]
What is the most efficient algorithm for detecting all cycles within a directed graph?
14 Answers
...
How to read a file into a variable in shell?
...
In cross-platform, lowest-common-denominator sh you use:
#!/bin/sh
value=`cat config.txt`
echo "$value"
In bash or zsh, to read a whole file into a variable without invoking cat:
#!/bin/bash
value=$(<config.txt)
echo "$value"
Inv...