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Completion block for popViewController
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I had the same issue. And because I had to use it in multiple occasions, and within chains of completion blocks, I created this generic solution in an UINavigationController subclass:
- (void) navigationController:(UINavigationController *) navigationController didShowViewContro...
How do CUDA blocks/warps/threads map onto CUDA cores?
...grids. The compute work distributor allocates thread blocks to Streaming Multiprocessors (SMs). Once a thread block is distributed to a SM the resources for the thread block are allocated (warps and shared memory) and threads are divided into groups of 32 threads called warps. Once a warp is allocat...
Remove whitespaces inside a string in javascript
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Not necessarily, some browsers have it built in. :-P
– Rocket Hazmat
May 29 '12 at 13:42
1
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Add a new column to existing table in a migration
... :
2018_08_08_093431_add_store_id_to_users_table.php (see the comments)
<?php
use Illuminate\Support\Facades\Schema;
use Illuminate\Database\Schema\Blueprint;
use Illuminate\Database\Migrations\Migration;
class AddStoreIdToUsersTable extends Migration
{
/**
* Run the migrations.
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Brew update failed: untracked working tree files would be overwritten by merge
... reason (like pinning a version) this action will revert them back to default ones and may produce unwanted effects.
@TedPennings noted in comments that this worked for him, but his sequence was:
chown everything to my_username:admin, ie, sudo chown -R ted:admin $(brew --prefix)
run the two git c...
Python - abs vs fabs
...hrows an exception). It then takes the absolute value, and returns the result as a float.
In addition to floats, abs() also works with integers and complex numbers. Its return type depends on the type of its argument.
In [7]: type(abs(-2))
Out[7]: int
In [8]: type(abs(-2.0))
Out[8]: float
In [9]: ...
Does order of where clauses matter in SQL?
...o conditions, something like:WHERE T1.col_1/T2.col_2 > 10 AND T2.col_2 <> 0 and got a DIVIDE BY 0 error. After I switched the order the conditions the query executed succesfully. Then I switched the order back so I would expect to get the error again, but this time it worked!In the end my c...
Understanding how recursive functions work
...ental programming question which I have just not been able to grok yet. Filtering out all of the (extremely clever) "In order to understand recursion, you must first understand recursion." replies from various online threads I still am not quite getting it.
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Node.js: How to send headers with form data using request module?
...o (events.js:106:13) at Request.emit (events.js:194:7) at Request.<anonymous> (C:\Users\pjt\node_modules\request\request.js:1163:10) at emitOne (events.js:96:13) at Request.emit (events.js:191:7)
– Tamilselvan K
Mar 25 '18 at 8:33
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Convert duration to hours:minutes:seconds (or similar) in Rails 3 or Ruby
I have a feeling there is a simple/built-in way to do this but I can't find it.
13 Answers
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