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How to select from subquery using Laravel Query Builder?
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Laravel v5.6.12 (2018-03-14) added fromSub() and fromRaw() methods to query builder (#23476).
The accepted answer is correct but can be simplified into:
DB::query()->fromSub(function ($query) {
$query->from('abc')->groupBy('col...
Javascript Thousand Separator / string format [duplicate]
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Updated using look-behind support in line with ECMAScript2018 changes.
For backwards compatibility, scroll further down to see the original solution.
A regular expression may be used - notably useful in dealing with big numbers stored as strings.
const format = num => ...
Is it possible to Pivot data using LINQ?
... yield return new CustData { CustId = custId, OrderDate = new DateTime(2018, random.Next(1, 4), 1), Qty = random.Next(1, 50) };
}
}
}
public class CustData
{
public int CustId { get; set; }
public DateTime OrderDate { get; set; }
public in...
Rounding up to next power of 2
...ion to help this (actually already at that time?). From : jameshfisher.com/2018/03/30/round-up-power-2.html uint64_t next_pow2(uint64_t x) { return x == 1 ? 1 : 1<<(64-__builtin_clzl(x-1)); } And for 32 bit : uint32_t next_pow2(uint32_t x) { return x == 1 ? 1 : 1<<(32-__builtin_clz(x-1...
Replace a string in a file with nodejs
... the usage instructions have been updated to reflect this.
Edit (16 March 2018): The package has amassed over 100k monthly downloads now and has been extended with additional features as well as a CLI tool.
Install:
npm install replace-in-file
Require module
const replace = require('replace-in...
Android应用开发性能优化完全分析 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...Paint的实例化操作不要写在onDraw()方法中等）；
对于并发下载等类似逻辑的实现尽量避免多次创建线程对象，而是交给线程池处理。
当然了，有了上面说明GC导致的性能后我们就该定位分析问题了，可以通过运行DDMS->Allocation T...
Correct Bash and shell script variable capitalization
...rted to the environment, it’s worth considering that the POSIX (Issue 7, 2018 edition) Environment Variable Definition specifies:
Environment variable names used by the utilities in the Shell and Utilities
volume of POSIX.1-2017 consist solely of uppercase letters, digits, and the
undersco...
How to terminate script execution when debugging in Google Chrome?
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As of April 2018, you can stop infinite loops in Chrome:
Open the Sources panel in Developer Tools (Ctrl+Shift+I**).
Click the Pause button to Pause script execution.
Also note the shortcut keys: F8 and Ctrl+\
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Groovy Shell warning “Could not open/create prefs root node …”
...ally got around to backporting this fix. It is fixed in 8u202. (as of 30Sep2018 the latest release of Java 8 is u181 so the fix is backported but not yet in any released version)
– peterh
Sep 30 '18 at 9:06
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How do I list all remote branches in Git 1.7+?
...etch all the remote's branches".
[1] As of the writing of this footnote 2018-Feb, I looked at the comments and see that the git branch -r works for the vast majority (about 90% or 125 out of 140).
If git branch -r does not work, check git config --get remote.origin.fetch contains a wildcard (*)...