大约有 1,600 项符合查询结果（耗时：0.0292秒） [XML]
How do you run a command for each line of a file?
...
October 2019, new edit, add interactive file processor sample.
– F. Hauri
Oct 6 '19 at 8:35
...
map function for objects (instead of arrays)
...assign({}, ...Object.entries(obj).map(([k, v]) => ({[k]: v * v})));
ES2019 introduced Object.fromEntries(), which simplifies this even more:
let newObj = Object.fromEntries(Object.entries(obj).map(([k, v]) => [k, v * v]));
Inherited properties and the prototype chain:
In some rare situ...
Reset the database (purge all), then seed a database
...abase for current environment and loads the seeds
https://blog.saeloun.com/2019/09/30/rails-6-adds-db-seed-replant-task-and-db-truncate_all.html
$ rails db:seed:replant --trace
** Invoke db:seed:replant (first_time)
** Invoke db:load_config (first_time)
** Invoke environment (first_time)
** Execute ...
Get the correct week number of a given date
...ng a first preview of .NET Core 3 later this year and the final version in 2019." (from the roadmap blog post)
– khellang
Aug 1 '18 at 8:41
...
What's the difference between “git reset” and “git checkout”?
...nch (if not, you end up with a detached HEAD).
(actually, with Git 2.23 Q3 2019, this will be git restore, not necessarily git checkout)
By comparison, since svn has no index, only a working tree, svn checkout will copy a given revision on a separate directory.
The closer equivalent for git check...
Convert HTML + CSS to PDF [closed]
...tten in 2009 and it might not be the most cost-effective solution today in 2019. Online alternatives are better today at this than they were back then.
Here are some online services that you can use:
PDFShift
Restpack
PDF Layer
DocRaptor
HTMLPDFAPI
HTML to PDF Rocket
Have a look at PrinceXML....
git: switch branch without detaching head
...
With Git 2.23 (August 2019), you would use the git switch command
If you have a remote branch of the same name, it will be automatically tracked:
$ git switch new-topic
Branch 'new-topic' set up to track remote branch 'new-topic' from 'origin'
S...
Hex representation of a color with alpha channel?
...r 4th character of a 4 digit hex colour (see CSS Level 4 spec*)
As of May 2019, >80% of users can be expected to understand the #RGBA format
Firefox has supported this syntax since Firefox 49 (Mozilla bug 567283).
Safari has supported this syntax since Safari 10.
Chrome has supported this synt...
Determine device (iPhone, iPod Touch) with iOS
...ad Pro 12.9 2020 (4th generation), Apple Watch 5
Previous update - October 2019: Added iPhone 11, iPhone 11 Pro, iPhone 11 Pro Max, iPad (7th generation)
Swift
(Tested on Swift 5, Swift 4, Swift 3)
The function below returns a string with current device name.
func userDeviceName() -> String {
...
Why does Google prepend while(1); to their JSON responses?
...
Note: as of 2019, many of the old vulnerabilities that lead to the preventative measures discussed in this question are no longer an issue in modern browsers. I'll leave the answer below as a historical curiosity, but really the whole t...