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Java int to String - Integer.toString(i) vs new Integer(i).toString()
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this is definitely bad form, because it both relies on a fairly subtle part of the Java language and is less efficient than Integer.toString(i). See this SO post
– rickcnagy
Nov 21 '13 at 15:39
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What is a void pointer in C++? [duplicate]
...urns a void* generally is doing one of the following:
It is dealing in unformatted memory. This is what operator new and malloc return: a pointer to a block of memory of a certain size. Since the memory does not have a type (because it does not have a properly constructed object in it yet), it is ...
Get first day of week in SQL Server
...nday:
You're adding a number of weeks to the date 0. What is date 0? 1900-01-01. What was the day on 1900-01-01? Monday. So in your code you're saying, how many weeks have passed since Monday, January 1, 1900? Let's call that [n]. Ok, now add [n] weeks to Monday, January 1, 1900. You should not be ...
Graphical DIFF programs for linux [closed]
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the only tool (apart form vimdiff) that allows merging/diffing unlimited amount of files, to my knowledge. net is kdiff3 with max 4 files.
– hoijui
May 7 at 5:32
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How to make the first option of selected with jQuery
... the DOM element, resulting in an element that may not reset properly in a form that has had the reset event called.
Use jQuery's prop method to clear and set the option needed:
$("#target option:selected").prop("selected", false);
$("#target option:first").prop("selected", "selected");
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How to increase the vertical split window size in Vim
:vsplit (short form: :vs ) split the Vim viewport vertically. :30vs splits the viewport, making the new window 30 characters wide. Once this 30 char window is created, how would one change it's size to 31 or 29?
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Transferring an app to another Firebase account
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do two things: add the new owner as a collaborator; then, fill in the
form below and email it to us as written verification. This must be
sent from the email address which owns the Firebase instance.
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REQUEST TO TRANSFER OWNERSHIP
I authorize the Firebase team to make **&l...
C++对象布局及多态探索之菱形结构虚继承 - C/C++ - 清泛网 - 专注C/C++及内核技术
...先看看这几个类，这是一个典型的菱形继承结构。C100和C101通过虚继承共享同一个父类C041。C110则从C100和C101多重继承而来。
struct C041
{
C041() : c_(0x01) {}
virtual void foo() { c_ = 0x02; }
char c_;
};
struct C100 : public virtual C0...
How to test if parameters exist in rails
...am a fan of
params[:one].present?
Just because it keeps the params[sym] form so it's easier to read.
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How to select option in drop down using Capybara
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it's not form, it is from. Here is the documentation on select
– fontno
Dec 26 '14 at 1:21
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