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How to get distinct values for non-key column fields in Laravel?
...e this
$users = User::select('name')->groupBy('name')->get()->toArray() ;
groupBy is actually fetching the distinct values, in fact the groupBy will categorize the same values, so that we can use aggregate functions on them. but in this scenario we have no aggregate functions, we are ju...
Simple (non-secure) hash function for JavaScript? [duplicate]
...:'+o.toString().replace(/([\\\\;])/g,'\\$1');
if (o instanceof Array) {
r=[];
for (i=0; i<o.length; i++)
r.push(stringify(o[i]));
return 'a:'+r.join(';');
}
r=[];
for (i in o) {
...
Using a dictionary to count the items in a list [duplicate]
...
You're applying count against the array as many times as there are array items. Your solution is O(n^2) where the better trivial solution is O(n). See comments on riviera's answer versus comments on mmdreg's answer.
– Ouroborus
...
node.js database [closed]
...ple , you have a JSON API that you query every 20 seconds which returns an array, you wanna be able to cache this, would you still go with Redis? also gotta do a fuzzy search through this array
– PirateApp
Dec 20 '17 at 15:30
...
C++使用OLE/COM高速读写EXCEL的源码 - C/C++ - 清泛网 - 专注C/C++及内核技术
...个sheet的数据
BOOL already_preload_;
///Create the SAFEARRAY from the VARIANT ret.
COleSafeArray ole_safe_array_;
LPDISPATCH m_lpDisp;
};
ExcelOp.cpp
#include "StdAfx.h"
#include "ExcelOp.h"
#ifdef _DEBUG
#define new DEBUG_NEW
#endif
CExcelOp::CExcelO...
Pretty-Printing JSON with PHP
...SON data to another script. My script builds data into a large associative array, and then outputs the data using json_encode . Here is an example script:
...
Is It Possible to Sandbox JavaScript Running In the Browser?
...nput : [4, 5, 6],
callback: function(arr) {
console.log("array: ", arr); // array: [1, 2, 3, 4, 5, 6]
}
}).eval({
code : "function x(z){this.y=z;};new x(input)",
input : 4,
callback: function(x) {
console.log("new x: ", x); // new x: object ...
Initializing select with AngularJS and ng-repeat
...ed to use ng-options and unfortunately I believe you need to reference the array element for a default (unless the array is an array of strings).
http://jsfiddle.net/FxM3B/3/
The JavaScript:
function AppCtrl($scope) {
$scope.operators = [
{value: 'eq', displayName: 'equals'},
...
Make a float only show two decimal places
...
IN objective-c, if you are dealing with regular char arrays (instead of pointers to NSString) you could also use:
printf("%.02f", your_float_var);
OTOH, if what you want is to store that value on a char array you could use:
sprintf(your_char_ptr, "%.02f", your_float_var);
...
How to debug Google Apps Script (aka where does Logger.log log to?)
...
A little hacky, but I created an array called "console", and anytime I wanted to output to console I pushed to the array. Then whenever I wanted to see the actual output, I just returned console instead of whatever I was returning before.
//return 'cons...