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Python argparse: Make at least one argument required
...tiple aspects of command line based program:
good design of command line
selecting/using proper parser
argparse offers a lot, but restricts possible scenarios and can become very complex.
With docopt things go much shorter while preserving readability and offering high degree of flexibility. If...
Creating a segue programmatically
...s, call that method when the appropriate button is clicked or table row is selected or whatever.
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if A vs if A is not None:
... method returns None if there were no rows in the result. Suppose you were selecting a value that might return 0 and need to know whether it's actually 0 or whether the query had no results at all.
A common idiom is to give a function or method's optional argument the default value of None, and the...
Change Active Menu Item on Page Scroll?
... scroll event of the container (usually window).
Quick example:
// Cache selectors
var topMenu = $("#top-menu"),
topMenuHeight = topMenu.outerHeight()+15,
// All list items
menuItems = topMenu.find("a"),
// Anchors corresponding to menu items
scrollItems = menuItems.map(functio...
JSLint: was used before it was defined
...tive respects function scope.
Some globals can be predefined for you. Select the Assume a browser (browser) option to predefine the standard global properties that are supplied by web browsers, such as document and addEventListener.
Example:
/*jslint browser: true*/
/*global $, jQuery*/
...
Print only?
...I was able to solve this by using some additional display:none styling for selected items but perhaps a more general solution is achievable by some combination of also forcing heights, overflow:none and absolute positioning for all divs or something.
– Malcolm MacLeod
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Converting timestamp to time ago in PHP e.g 1 day ago, 2 days ago…
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Terrible solution. Why does this have 42 upvotes and selected answer? Since when does every month have 30 days?
– BadHorsie
Mar 14 '14 at 17:22
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When is each sorting algorithm used? [closed]
...s O(N^2), it has a very small constant and is a stable sort.
Bubble sort, selection sort: When you're doing something quick and dirty and for some reason you can't just use the standard library's sorting algorithm. The only advantage these have over insertion sort is being slightly easier to impl...
Find kth smallest element in a binary search tree in Optimum way
... tree, your algorithm will take O(n) time to finish, which is bad for the selected answer-O(log n)
– Spark8006
Jul 2 '15 at 14:58
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Getting number of days in a month
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I made it calculate days in month from datetimepicker selected month and year , and I but the code in datetimepicker1 textchanged to return the result in a textbox
with this code
private void DateTimePicker1_ValueChanged(object sender, EventArgs e)
{
int s = System.DateTime...