大约有 22,000 项符合查询结果（耗时：0.0502秒） [XML]
How to “pretty” format JSON output in Ruby on Rails
...nController::Renderers.add :json do |json, options|
unless json.kind_of?(String)
json = json.as_json(options) if json.respond_to?(:as_json)
json = JSON.pretty_generate(json, options)
end
if options[:callback].present?
self.content_type ||= Mime::JS
"#{options[:callback]}(#{jso...
How to check sbt version?
...t project to jacek (in build file:/Users/jacek/)
[info] Setting: java.lang.String = 0.13.1
[info] Description:
[info] Provides the version of sbt. This setting should be not be modified.
[info] Provided by:
[info] */*:sbtVersion
[info] Defined at:
[info] (sbt.Defaults) Defaults.scala:68
[info] D...
Javascript Shorthand for getElementById
...
To save an extra character you could pollute the String prototype like this:
pollutePrototype(String, '绎', {
configurable: false, // others must fail
get: function() {
return document.getElementById(this);
},
set: function(element) {
eleme...
Immutable vs Unmodifiable collection
...ects themselves may still be mutable - creating an immutable collection of StringBuilder doesn't somehow "freeze" those objects.
Basically, the difference is about whether other code may be able to change the collection behind your back.
...
jQuery .data() does not work, but .attr() does
...ia .data() will return an Object while retrieval via .attr() will return a string. See jsfiddle example.
Since .data() does extra processing jQuery stores the results of attribute evaluation in $.cache - after all, once a data attribute has been evaluated it would be wasteful to re-evaluate on ever...
How to get the client IP address in PHP [duplicate]
...elds in your database.
If you are going to save the IP to a database as a string, make sure you have space for at least 45 characters. IPv6 is here to stay and those addresses are larger than the older IPv4 addresses.
(Note that IPv6 usually uses 39 characters at most but there is also a special I...
subtle differences between JavaScript and Lua [closed]
...als in JS can be in octal.
JS has explicit Unicode support, and internally strings are encoded in UTF-16 (so they are sequences of pairs of bytes). Various built-in JavaScript functions use Unicode data, such as "pâté".toUpperCase() ("PÂTÉ"). Lua 5.3 and up have Unicode code point escape sequenc...
Understanding Python's “is” operator
...
Another duplicate was asking why two equal strings are generally not identical, which isn't really answered here:
>>> x = 'a'
>>> x += 'bc'
>>> y = 'abc'
>>> x == y
True
>>> x is y
False
So, why aren't they the same str...
LogCat message: The Google Play services resources were not found. Check your project configuration
...google.android.gms.common.GooglePlayServicesUtil.class. The aforementioned string appears only in one place:
public static int isGooglePlayServicesAvailable(Context context) {
PackageManager localPackageManager = context.getPackageManager();
try {
Resources localResources = context....
What are the pros and cons to keeping SQL in Stored Procs versus Code [closed]
... as a language in many IDE's so you have just a series of un-error checked strings performing tasks for you
changes in a data type, table name or constraint are far more prevalent than swapping out an entire databases for a new one
your level of difficulty increases as your query grows in complexity...