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Why does parseInt yield NaN with Array#map?
...e as not supplying the parameter, so it defaulted based on the input (base 10, in this case). Base 1 is an impossible number base, and 3 is not a valid number in base 2:
parseInt('1', 0); // OK - gives 1
parseInt('2', 1); // FAIL - 1 isn't a legal radix
parseInt('3', 2); // FAIL - 3 isn't legal in...
Select N random elements from a List in C#
...his algorithm.
– Ankur Goel
Feb 22 '10 at 22:52
23
ok, I ran this algorithm 10 million times on a...
Dictionaries and default values
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103
You can also use the defaultdict like so:
from collections import defaultdict
a = defaultdict...
How to 'insert if not exists' in MySQL?
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How do API Keys and Secret Keys work? Would it be secure if I have to pass my API and secret keys to
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answered Apr 20 '10 at 19:31
benben
1,03477 silver badges44 bronze badges
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Best way to check if a Data Table has a null value in it
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edited Apr 10 '14 at 15:05
answered Jan 5 '11 at 13:21
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Does the C++ standard mandate poor performance for iostreams, or am I just dealing with a poor imple
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edited Dec 3 '10 at 2:36
answered Dec 2 '10 at 23:40
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Determine if $.ajax error is a timeout
...l: "/ajax_json_echo/",
type: "GET",
dataType: "json",
timeout: 1000,
success: function(response) { alert(response); },
error: function(xmlhttprequest, textstatus, message) {
if(textstatus==="timeout") {
alert("got timeout");
} else {
alert(...
Why can't decimal numbers be represented exactly in binary?
...g point can be exactly represented.
Let's look at it another way - in base 10 which you're likely to be comfortable with, you can't express 1/3 exactly. It's 0.3333333... (recurring). The reason you can't represent 0.1 as a binary floating point number is for exactly the same reason. You can represe...
Difference between return and exit in Bash functions
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