大约有 47,000 项符合查询结果（耗时：0.0646秒） [XML]
Hidden Features of JavaScript? [closed]
...function's arguments array-like object.
function sum() {
var retval = 0;
for (var i = 0, len = arguments.length; i < len; ++i) {
retval += arguments[i];
}
return retval;
}
sum(1, 2, 3) // returns 6
...
UITableView + Add content offset at top
...DidLoad method I added:
[self.tableView setContentInset:UIEdgeInsetsMake(50,0,0,0)];
the values it takes are UIEdgeInsetsMake(top,left,bottom,right).
Alternatively the same with Swift:
self.tableView.contentInset = UIEdgeInsetsMake(50, 0, 0, 0)
Swift 4.2:
self.tableView.contentInset = UIEdge...
How to change plot background color?
...an use set_facecolor:
ax.set_facecolor('xkcd:salmon')
ax.set_facecolor((1.0, 0.47, 0.42))
As a refresher for what colors can be:
matplotlib.colors
Matplotlib recognizes the following formats to specify a color:
an RGB or RGBA tuple of float values in [0, 1] (e.g., (0.1, 0.2, 0....
NPM - How to fix “No readme data”
... file... :/
– mgol
Feb 3 '14 at 15:20
3
I too have a README.md file with a whole bunch of stuff i...
Is floating point math broken?
...s format as a whole number times a power of two; rational numbers (such as 0.1, which is 1/10) whose denominator is not a power of two cannot be exactly represented.
For 0.1 in the standard binary64 format, the representation can be written exactly as
0.1000000000000000055511151231257827021181583...
Does the ternary operator exist in R?
...
306
As if is function in R and returns the latest evaluation, if-else is equivalent to ?:.
> a ...
Is there a printf converter to print in binary format?
...Y_PATTERN "%c%c%c%c%c%c%c%c"
#define BYTE_TO_BINARY(byte) \
(byte & 0x80 ? '1' : '0'), \
(byte & 0x40 ? '1' : '0'), \
(byte & 0x20 ? '1' : '0'), \
(byte & 0x10 ? '1' : '0'), \
(byte & 0x08 ? '1' : '0'), \
(byte & 0x04 ? '1' : '0'), \
(byte & 0x02 ? '1' : '0...
What are the aspect ratios for all Android phone and tablet devices?
...══════════╣
║ 19.5 x 9 ║ 0.462... ║ 2.167... ║
╠══════════════════════════╬════════════════════════╬══════...
Why do enum permissions often have 0, 1, 2, 4 values?
Why are people always using enum values like 0, 1, 2, 4, 8 and not 0, 1, 2, 3, 4 ?
7 Answers
...
Too many 'if' statements?
...
600
If you cannot come up with a formula, you can use a table for such a limited number of outcomes...