大约有 44,000 项符合查询结果（耗时：0.0856秒） [XML]
When creating HTML emails, should we use html, head, body tags?
...ere:
a webmail willing to show your mail as a full page, could keep your format.
a webmail will simply strip the tags and attributes it doesn't want. But you can't never know which ones.
It's easier to find (server side) components that follow format standards, and thus less error prone. Parsers n...
What does rake db:test:prepare actually do?
...mpts, it is a good idea to first run
db:test:prepare, as it first checks for pending migrations and warns
you appropriately.
-- http://guides.rubyonrails.org/testing.html
Basically it handles cloning the database so you don't have to run the migrations against test to update the test database...
R object identification
I am often ending up with a function producing output for which I don't understand the output data type. I'm expecting a list and it ends up being a list of lists or a data frame or something else. What's a good method or workflow for figuring out the output data type when first using a function?
...
jQuery “Does not have attribute” selector?
...
Thanks for contributing an answer to Stack Overflow!Please be sure to answer the question. Provide details and share your research!But avoid …Asking for help, clarification, or responding to other answers.Making statements based o...
How do I update my forked repo using SourceTree?
I am using SourceTree (with BitBucket) to manage my code. I have forked a repo, and the parent repo has been updated.
1 An...
What is the difference between decodeURIComponent and decodeURI?
...ponent.
The main difference is that:
The encodeURI function is intended for use on the full URI.
The encodeURIComponent function is intended to be used on .. well .. URI components that is
any part that lies between separators (; / ? : @ & = + $ , #).
So, in encodeURIComponent these separa...
What's Go's equivalent of argv[0]?
...flag package http://golang.org/pkg/flag is the preferred way. Specifically for your case flag.Usage
Update for the example you gave:
func usage() {
fmt.Fprintf(os.Stderr, "usage: %s [inputfile]\n", os.Args[0])
flag.PrintDefaults()
os.Exit(2)
}
should do the trick
...
String.replaceAll without RegEx
...
Works perfectly if you havea "$" in your matchingStr for example.
– Julien Lafont
Jul 16 '15 at 9:29
...
Do Facebook Oauth 2.0 Access Tokens Expire?
...will expire after about 60 days.
The token will be refreshed once per day, for up to 90 days, when the person using your app makes a request to Facebook's servers.
All access tokens need to be renewed every 90 days with the consent of the person using your app.
Facebook change announce (10/04/2...
Get current value of a setting in Vim
...
Note that the set <...>? syntax will work for "settings" that are options, but not for "settings" that are variables. So for example, to find out what the current syntax highlighting mode is (encoded in a variable, not an option), you need to do echo b:current_syntax...