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How do I hide a menu item in the actionbar?
...y different. Your code returns null for item and that's causing the crash. What you need instead is to do:
MenuItem item = menu.findItem(R.id.addAction);
Here is the sequence in which you should call:
first call invalidateOptionsMenu() and then inside onCreateOptionsMenu(Menu) obtain a reference ...
How to remove element from array in forEach loop?
...ndex, 1);
}
});
log(review);
<pre id="out"></pre>
So what can we do about this problem when iterating and mutating an array? Well the usual solution is to work in reverse. Using ES3 while but you could use for sugar if preferred
var pre = document.getElementById('out');
fu...
OS specific instructions in CMAKE: How to?
...
What does one use for Solaris?
– jww
Aug 29 '17 at 11:16
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appending array to FormData and send via AJAX
...p.net with automatic mapping or something similar, then @Curious answer is what you need.
– Martín Coll
Jul 10 '15 at 19:50
...
When is std::weak_ptr useful?
...t need to keep those in memory, so you get rid of the strong pointer.
But what if that object is in use and some other code holds a strong pointer to it? If the cache gets rid of its only pointer to the object, it can never find it again. So the cache keeps a weak pointer to objects that it needs t...
How to handle a lost KeyStore password in Android?
I have forgotten my Keystore password and I don't really know what to do anymore (I can't or won't give any excuses for it). I want to update my app because I just fixed a bug but it's not possible anymore. What happens if I use the same Keystore but create a new key? Would I still be able to update...
Access Container View Controller from Parent iOS
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@Fydo, and what is the problem with handling all of the multiple containers on the 'prepare for segue'?
– Lay González
Jun 20 '14 at 17:54
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What REALLY happens when you don't free after malloc?
...ou still have around on program exit. It's more of an exercise in knowing what memory you're using, and thinking about whether you still need it. If you don't keep track, you might have memory leaks.
On the other hand, the similar admonition to close your files on exit has a much more concrete re...
Upgrade Node.js to the latest version on Mac OS
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This worked, but no one explains what the commands why installing "n" helps. I just figured out today that "n" is a Node.js version manager, as somewhat explained on the npm js website - npmjs.com/get-npm
– Mark
Oct 29 ...
How to find first element of array matching a boolean condition in JavaScript?
...nly return whether the condition was met once, not by which element (or at what index) it was met. So we have to amend it a little:
function find(arr, test, ctx) {
var result = null;
arr.some(function(el, i) {
return test.call(ctx, el, i, arr) ? ((result = el), true) : false;
});...