大约有 8,600 项符合查询结果（耗时：0.0195秒） [XML]
How to access command line parameters?
...d for you.
clap: you describe the options you want to parse using a fluent API. Faster than docopt and gives you more control.
getopts: port of the popular C library. Lower-level and even more control.
structopt: built on top of clap, it is even more ergonomic to use.
...
How to execute shell command in Javascript
...se frame your code :)
You could use the child_process module from node's API. I pasted the example code below.
var exec = require('child_process').exec, child;
child = exec('cat *.js bad_file | wc -l',
function (error, stdout, stderr) {
console.log('stdout: ' + stdout);
cons...
How to get Locale from its String representation in Java?
...
Call requires API level 21 (current min is 17): java.util.Locale#forLanguageTag
– Vlad
Oct 14 '18 at 7:53
add a co...
Python UTC datetime object's ISO format doesn't include Z (Zulu or Zero offset)
...now())
'2014-05-17T01:18:47.944126+00:00'
Arrow has essentially the same api as datetime, but with timezones and some extra niceties that should be in the main library.
A format compatible with Javascript can be achieved by:
arrow.utcnow().isoformat().replace("+00:00", "Z")
'2018-11-30T02:46:40....
Removing Data From ElasticSearch
...n as of Elasticsearch's 2.0.0-beta1 delete-by-query was removed from main api
Install delete-by-query plugin
sudo bin/plugin install delete-by-query
For more
http://blog.appliedinformaticsinc.com/how-to-delete-elasticsearch-data-records-by-dsl-query/
...
Should I use 'has_key()' or 'in' on Python dicts?
...y() is specific to Python 2 dictionaries. in / __contains__ is the correct API to use; for those containers where a full scan is unavoidable there is no has_key() method anyway, and if there is a O(1) approach then that'll be use-case specific and so up to the developer to pick the right data type f...
When is the @JsonProperty property used and what is it used for?
...able is directly used to serialize data. If you are about to remove system api from system implementation, in some cases, you have to rename variable in serialization/deserialization. @JsonProperty is a meta data to tell serializer how to serial object. It is used to:
variable name
access (READ, W...
Convert PEM to PPK file format
...s not stored in vCloud Express.
The “Default” checkbox is used for the API.
Deploy server and select key
Connect
SSH (Mac/Linux)
Copy .PEM file to the machine from which you are going to connect.
Make sure permissions on .PEM file are appropriate (chmod 600 file.pem)
Connect with ssh comma...
JavaScript listener, “keypress” doesn't detect backspace?
...r alt, shift
This shouldn't be surprising because according to https://api.jquery.com/keypress/:
Note: as the keypress event isn't covered by any official
specification, the actual behavior encountered when using it may
differ across browsers, browser versions, and platforms.
The use o...
Uses for the Java Void Reference Type?
...
Before generics, it was created for the reflection API, to hold TYPE returned by Method.getReturnType() for a void method, corresponding to the other primitive type classes.
EDIT: From the JavaDoc of Void: "The Void class is an uninstantiable placeholder class to hold a refe...