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How to check if a variable is not null?
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Here is how you can test if a variable is not NULL:
if (myVar !== null) {...}
the block will be executed if myVar is not null.. it will be executed if myVar is undefined or false or 0 or NaN or anything else..
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How to get the current loop index when using Iterator?
...ad the same question and found using a ListIterator worked. Similar to the test above:
List<String> list = Arrays.asList("zero", "one", "two");
ListIterator iter = list.listIterator();
while (iter.hasNext()) {
System.out.println("index: " + iter.nextIndex() + " value: " + iter.next());
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What is the default height of UITableViewCell?
...one row the cell height will be 46.0f."
It's wrong!! 44.0f in fact! I just test it!
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Why does IE9 switch to compatibility mode on my website?
...=Edge"/>
or the HTTP header:
X-UA-Compatible: IE=Edge
to get the latest renderer whatever IE version is in use.
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Getting a list item by index
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@Paul McCarthy: you could easily test this yourself, but Yes. A list hold references to objects. Clearing the list does not affect the objects held in it. If there are no other references to those objects, they will be garbage collected at some point in time...
How can I find the data structure that represents mine layout of Minesweeper in memory?
...002EF0 lea eax, [ecx+2]
.text:01002EF3 test eax, eax
.text:01002EF5 push esi
.text:01002EF6 jz short loc_1002F11 ;
.text:01002EF6
.text:01002EF8 mov esi, edx
.text:01002EFA shl ...
android: stretch image in imageview to fit screen
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@smac89 Before asking I already tested both of them and it worked just the same. I was curious about the reason but now think you didn't know FIT_CENTER just like the fact I didn't know about the combination you let me know. :)
– Jenix...
HashSet vs LinkedHashSet
...the most of the time we use Set structures for iterating.
Performance tests:
------------- TreeSet -------------
size add contains iterate
10 746 173 89
100 501 264 68
1000 714 410 69
10000 1975 552 69
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How to explicitly discard an out argument?
...ly the case with the TryParse (or TryWhatever) pattern, when it is used to test the validity of user input (e.g. can it be parsed as a number?) without caring about the actual parsed value.
You used the word "dispose" in the question, which I suspect was just unfortunate - but if the out parameter...
WhatsApp API (java/python) [closed]
...ots App is interesting because it shows that something is really tried and tested.
Yowsup
A project still actively developed to interact with WhatsApp platform.
Yallagenie
Yallagenie claim that there is a demo bot which can be interacted with at +971 56 112 6652
Hubtype
Hubtype is working towards h...