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Fastest way to check if a string matches a regexp in ruby?
...
This is a simple benchmark:
require 'benchmark'
"test123" =~ /1/
=> 4
Benchmark.measure{ 1000000.times { "test123" =~ /1/ } }
=> 0.610000 0.000000 0.610000 ( 0.578133)
"test123"[/1/]
=> "1"
Benchmark.measure{ 1000000.times { "test123"[/1/] } }
=> 0.718000 ...
How can I call controller/view helper methods from the console in Ruby on Rails?
...the helper object:
$ ./script/console
>> helper.number_to_currency('123.45')
=> "R$ 123,45"
If you want to use a helper that's not included by default (say, because you removed helper :all from ApplicationController), just include the helper.
>> include BogusHelper
>> helper...
Elements order in a “for (… in …)” loop
...[i,obj[i]].join(':'));
console.log(arr);
}
var obj = { a:1, b:2, c:3, "123":'xyz' };
/* log1 */ lineate(obj);
obj.a = 4;
/* log2 */ lineate(obj);
delete obj.a;
obj.a = 4;
/* log3 */ lineate(obj);
gist or test in current browser
Safari 5, Firefox 14
["a:1", "b:2", "c:3", "123:xyz"]
["a:4",...
Python-equivalent of short-form “if” in C++ [duplicate]
Is there a way to write this C/C++ code in Python?
a = (b == true ? "123" : "456" )
4 Answers
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How Do I Convert an Integer to a String in Excel VBA?
...he shortest way without declaring the variable is with Type Hints :
s$ = 123 ' s = "123"
i% = "123" ' i = 123
This will not compile with Option Explicit. The types will not be Variant but String and Integer
share
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wxbit平台第三方扩展报错分析：no such class 运行时错误的根本原因 - AI ...
用户提问：
在fun123.cn中测试CloudBase 拓展 能正常查询数据，我今天打算把wxbit平台中的原来调用LeanCloud的，也改为CloudBase拓展调用时，运行时出错：
错误：java.lang.RuntimeException: invalid syntax in eval form:
<string>:51:1: caught exce...
Creating anonymous objects in php
...wered Mar 29 '15 at 14:09
Rizier123Rizier123
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...
Convert JavaScript string in dot notation into an object reference
...,'etc']) #works with both strings and lists
5
> index(obj,'a.b.etc', 123) #setter-mode - third argument (possibly poor form)
123
> index(obj,'a.b.etc')
123
...though personally I'd recommend making a separate function setIndex(...). I would like to end on a side-note that the original...
C# Regex for Guid
...g styles, which are all equivalent and acceptable formats for a GUID.
ca761232ed4211cebacd00aa0057b223
CA761232-ED42-11CE-BACD-00AA0057B223
{CA761232-ED42-11CE-BACD-00AA0057B223}
(CA761232-ED42-11CE-BACD-00AA0057B223)
Update 1
@NonStatic makes the point in the comments that the above regex will ...
Good PHP ORM Library?
...roducts'); // Automatically reads the above schema
$product->product_id=123;
$product->description='Sofa bed';
$product->save(); // ORM knows it's a new record
// Retrieve
$product->load('product_id=123');
echo $product->description;
// Update
$product->description='A better sofa...