大约有 47,000 项符合查询结果(耗时:0.0796秒) [XML]
Is a Java hashmap search really O(1)?
...someone explain why this is so? Unless these hashmaps are vastly different from any of the hashing algorithms I was bought up on, there must always exist a dataset that contains collisions.
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PHP: Count a stdClass object
I have a stdClass object created from json_decode that won't return the right number when I run the count($obj) function. The object has 30 properties, but the return on the count() function is say 1.
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Margin-Top push outer div down
...feeling it has something to do with how margins are collapsed (combined).
from W3C Collapsing Margins:
In this specification, the expression
collapsing margins means that
adjoining margins (no non-empty
content, padding or border areas or
clearance separate them) of two or
more boxe...
Wait until all jQuery Ajax requests are done?
...ajax1() {
// NOTE: This function must return the value
// from calling the $.ajax() method.
return $.ajax({
url: "someUrl",
dataType: "json",
data: yourJsonData,
...
});
}
In my opinion, it makes for a clean and clear syntax, an...
Find object in list that has attribute equal to some value (that meets any condition)
...x for x in test_list if x.value == value), None)
This gets the first item from the list that matches the condition, and returns None if no item matches. It's my preferred single-expression form.
However,
for x in test_list:
if x.value == value:
print("i found it!")
break
The na...
How can I print the contents of a hash in Perl?
...
Sorry, down vote from me for stuff that hijacks comments for actual functionality. A maintenance programmer could spend all day trying to work out why code like that was printing out unexpected stuff.
– MikeKulls
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Which access modifiers are implied when not specified?
...s just how TS works, it will compile your code no matter if it's "correct" from a TS standpoint, this implies to everything in TS with no exception to classes, but the main point is if you respect TS warnings - you won't be accessing properties marked as private.
– Andrew Bogda...
What's the right way to decode a string that has special HTML entities in it? [duplicate]
Say I get some JSON back from a service request that looks like this:
7 Answers
7
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How to increase font size in a plot in R?
...est or GBM), you need to use cex.names (if you're a human who reads things from an upright position, you might also want las=2)
– geneorama
Jan 12 '16 at 20:13
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Find out if ListView is scrolled to the bottom?
... your calculation stuff here. You have all your
// needed info from the parameters of this function.
// Sample calculation to determine if the last
// item is fully visible.
final int lastItem = firstVisibleItem + visibleItemCount;
if(la...
