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Set a default parameter value for a JavaScript function
...S2015, default parameters are in the language specification.
function read_file(file, delete_after = false) {
// Code
}
just works.
Reference: Default Parameters - MDN
Default function parameters allow formal parameters to be initialized with default values if no value or undefined is pass...
Skip Git commit hooks
...k folder elsewhere, and setup a post-merge hook (git-scm.com/docs/githooks#_post_merge) which will detect if the pull affect the repo hook folder, and will propose to copy its content to your local hook folder (outside of the repo): that way, you can at least control if you want your hooks overridde...
动态追踪（Dynamic Tracing）技术漫谈 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
...于 21 世纪初诞生于 Solaris 操作系统，是由原来的 Sun Microsystems 公司的工程师编写的。可能很多同学都听说过 Solaris 系统和 Sun 公司的大名。
最初产生的时候，我记得有这样一个故事，当时 Solaris 操作系统的几个工程师花了几天...
Xcode 4 - “Archive” is greyed out?
...on/ToolsLanguages/Conceptual/Xcode4UserGuide/DistApps/DistApps.html#//apple_ref/doc/uid/TP40010215-CH11-DontLinkElementID_69
But I still can't get the actual archives to show up in Organizer (even though the files exist)
sh...
What is “Orthogonality”?
...gn, operations do not have side effects; each action (whether it's an API call, a macro invocation, or a language operation) changes just one thing without affecting others. There is one and only one way to change each property of whatever system you are controlling.
...
Why shouldn't I use “Hungarian Notation”?
...me with its kind (using Joel's example: safe string or unsafe string), so called Apps Hungarian has its uses and is still valuable.
share
edited Sep 26 '08 at 19:56
...
What is the difference between gravity and layout_gravity in Android?
...
Basically, everything with layout_ defines something that effects the elements outside.
– Triang3l
Jun 28 '13 at 10:26
...
Add a CSS class to
...
<%= f.submit 'name of button here', :class => 'submit_class_name_here' %>
This should do. If you're getting an error, chances are that you're not supplying the name.
Alternatively, you can style the button without a class:
form#form_id_here input[type=submit]
Try that,...
What is an optional value in Swift?
...g and writing code more fluent. Unfortunately this obscures the way it actually works. I'll go through some of the tricks later.
Note: I'll be talking about optional variables a lot, but it's fine to create optional constants too. I mark all variables with their type to make it easier to understand ...
How do I sort strings alphabetically while accounting for value when a string is numeric?
... bool IsNumeric(string value)
{
return int.TryParse(value, out _);
}
/// <inheritdoc />
public int Compare(string s1, string s2)
{
const int S1GreaterThanS2 = 1;
const int S2GreaterThanS1 = -1;
var IsNumeric1 = IsNumeric(s1);
var Is...