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Creating range in JavaScript - strange syntax
...arr);
Number(i, arr);
Which returns the transformation of i, the current index, to a number.
In conclusion,
The expression
Array.apply(null, { length: 5 }).map(Number.call, Number);
Works in two parts:
var arr = Array.apply(null, { length: 5 }); //1
arr.map(Number.call, Number); //2
The fi...
efficient circular buffer?
...nderstandable when the deque can grow to infinity, but if maxlen is given, indexing an element should be constant time.
– lvella
Nov 13 '15 at 21:57
1
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How do I convert an NSString value to NSData?
... edited Aug 5 '12 at 15:59
ldiqual
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answered May 23 '09 at 11:34
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Deleting DataFrame row in Pandas based on column value
...df[df.columns[2].notnull()], but one way or another you need to be able to index the column somehow.
– erekalper
Nov 9 '18 at 20:35
1
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jquery: $(window).scrollTop() but no $(window).scrollBottom()
...
@crashspringfield Actually that's a different question. This question is about placing things near the bottom of the viewport not the bottom of the page.
– iPherian
May 6 '17 at 0:45
...
Computed / calculated / virtual / derived columns in PostgreSQL
...e to list it explicitly.
Can also be supported with a matching expression index - provided the function is IMMUTABLE. Like:
CREATE FUNCTION col(tbl) ... AS ... -- your computed expression here
CREATE INDEX ON tbl(col(tbl));
Alternatives
Alternatively, you can implement similar functionality wi...
AngularJS For Loop with Numbers & Ranges
...this. It should be a new attribute that works with two values. The current index and the upper bound.
– Ian Warburton
May 19 '13 at 18:49
10
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Access parent URL from iframe
... your iFrame, say you want this iframe: src="http://www.example.com/mypage.php"
Well, instead of HTML to specify the iframe, use a javascript to build the HTML for your iframe, get the parent url through javascript "at build time", and send it as a url GET parameter in the querystring of your src t...
Replacing instances of a character in a string
...ou can do the below, to replace any char with a respective char at a given index, if you wish not to use .replace()
word = 'python'
index = 4
char = 'i'
word = word[:index] + char + word[index + 1:]
print word
o/p: pythin
...
Get button click inside UITableViewCell
...emplate has some buttons. I want to access the button click along with the index of the cell clicked inside the view controller where I have defined the Table view.
...