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When to use symbols instead of strings in Ruby?
...r this:
require 'benchmark'
require 'haml'
str = Benchmark.measure do
10_000.times do
Haml::Engine.new('%input{type: "checkbox"}').render
end
end.total
sym = Benchmark.measure do
10_000.times do
Haml::Engine.new('%input{type: :checkbox}').render
end
end.total
puts "String: " + st...
Difference between fold and reduce?
...
answered Jan 29 '12 at 19:08
LeeLee
130k1717 gold badges205205 silver badges262262 bronze badges
...
Return two and more values from a method
...
160
def sumdiff(x, y)
return x+y, x-y
end
#=> nil
sumdiff(3, 4)
#=> [7, -1]
a = sumdiff(3,...
Get cursor position (in characters) within a text Input field
...r) position of the specified text field (oField).
** Return value range is 0-oField.value.length.
*/
function doGetCaretPosition (oField) {
// Initialize
var iCaretPos = 0;
// IE Support
if (document.selection) {
// Set focus on the element
oField.focus();
// To get cursor po...
What is the difference between ndarray and array in numpy?
...
edited Sep 27 '18 at 14:40
nbro
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answered Ap...
How to calculate time elapsed in bash script?
...
20 Answers
20
Active
...
How to serialize a lambda?
...
answered Apr 2 '14 at 10:09
assyliasassylias
286k6767 gold badges597597 silver badges722722 bronze badges
...
Django using get_user_model vs settings.AUTH_USER_MODEL
... knbkknbk
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7
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Git: How to edit/reword a merge commit's message?
...
– Gabriel Devillers
Jan 23 '19 at 17:08
3
...
Calculate distance between 2 GPS coordinates
...d South locations are negative.
Remember minutes and seconds are out of 60 so S31 30' is -31.50 degrees.
Don't forget to convert degrees to radians. Many languages have this function. Or its a simple calculation: radians = degrees * PI / 180.
function degreesToRadians(degrees) {
return degre...