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What is context in _.each(list, iterator, [context])?
...ameter just sets the value of this in the iterator function.
var someOtherArray = ["name","patrick","d","w"];
_.each([1, 2, 3], function(num) {
// In here, "this" refers to the same Array as "someOtherArray"
alert( this[num] ); // num is the value from the array being iterated
...
Why Choose Struct Over Class?
...initializer, and maintain the intializer...
Basic collection types like Array are structs. The more you use them in your own code, the more you will get used to passing by value as opposed to reference. For instance:
func removeLast(var array:[String]) {
array.removeLast()
println(array) /...
getting date format m-d-Y H:i:s.u from milliseconds
...d with microseconds.
So use as simple:
$micro_date = microtime();
$date_array = explode(" ",$micro_date);
$date = date("Y-m-d H:i:s",$date_array[1]);
echo "Date: $date:" . $date_array[0]."<br>";
Recommended and use dateTime() class from referenced:
$t = microtime(true);
$micro = sprintf...
must appear in the GROUP BY clause or be used in an aggregate function
...ed field aggregated as well.
In posgres, this should work:
SELECT cname, (array_agg(wmname ORDER BY avg DESC))[1], MAX(avg)
FROM makerar GROUP BY cname;
Note that this creates an array of all wnames, ordered by avg, and returns the first element (arrays in postgres are 1-based).
...
What is console.log?
...wise the whole page will crash. Whether what you're logging is a variable, array, object or DOM element, it will give you a full breakdown including the prototype for the object as well (always interesting to have a poke around). You can also include as many arguments as you want, and they will be r...
请停下来重新想下 你究竟为何创业？ - 资讯 - 清泛网 - 专注C/C++及内核技术
...绰号！
但拿到天使投资只是第一步而已。如果你很善于使用关于创业流行词汇，并对类似“软件吞并世界”、“旧金山湾区”等的神圣故事带有足够的景仰之情，相信你也可以创业过程中顺风顺水的。
而且天使投资仅仅融资...
Pandas - Get first row value of a given column
...ee from the documentation that it says "Warning: We recommend using Series.array or Series.to_numpy(), depending on whether you need a reference to the underlying data or a NumPy array." but I'm not sure exactly what that means
– aydow
Jan 16 at 3:01
...
Is Java really slow?
...it carries a small performance cost. UTF-8 looks like a better choice now.
Array access is a bit slower compared to C, due to bounds checks. The penalty used to be big, but is now small (Java 7 optimizes away a lot of redundant bounds checks).
Lack of arbitrary memory access can make some I/O and bi...
Common programming mistakes for Clojure developers to avoid [closed]
...a.lang.IllegalArgumentException: Wrong number of args passed to: PersistentArrayMap
because the #() reader macro gets expanded to
(fn [%1 %2] ({%1 %2}))
with the map literal wrapped in parenthesis. Since it's the first element, it's treated as a function (which a literal map actually is), but...
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