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How to count items in a Go map?
...ed from the now-retired SO documentation:
m := map[string]int{}
len(m) // 0
m["foo"] = 1
len(m) // 1
If a variable points to a nil map, then len returns 0.
var m map[string]int
len(m) // 0
Excerpted from Maps - Counting map elements. The original author was Simone Carletti. Attribution det...
Easiest way to open a download window without navigating away from the page
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109
7 years have passed and
I don't know whether it works for IE6 or not, but this prompts OpenFile...
Eclipse, regular expression search and replace
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edited Jun 20 at 9:12
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answered Sep 3 '09 at 11:04
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.net implementation of bcrypt
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answered May 16 '09 at 22:02
ineine
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How to get the separate digits of an int number?
I have numbers like 1100, 1002, 1022 etc. I would like to have the individual digits, for example for the first number 1100 I want to have 1, 1, 0, 0.
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How can I get nth element from a list?
...re, the operator used is !!.
I.e. [1,2,3]!!1 gives you 2, since lists are 0-indexed.
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npm: disable postinstall script for package
... Gergo ErdosiGergo Erdosi
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What is the zero for string?
...="" {
To pass a zero string in stringID, use
k := NewKey(c, "kind", "", 0, p)
From the specification :
When memory is allocated to store a value, either through a
declaration or a call of make or new, and no explicit initialization
is provided, the memory is given a default initializati...
What is the significance of load factor in HashMap?
...ize and load factor . I went through the Java documentation and it says 0.75f is the initial load factor. But I can't find the actual use of it.
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How can I check whether a numpy array is empty or not?
...e a look at the .size attribute. It is defined as an integer, and is zero (0) when there are no elements in the array:
import numpy as np
a = np.array([])
if a.size == 0:
# Do something when `a` is empty
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