大约有 7,549 项符合查询结果（耗时：0.0267秒） [XML]
How to parse JSON using Node.js? [closed]
...is one of them.
Note: If you're using a JSON file to store sensitive information (e.g. passwords), that's the wrong way to do it. See how Heroku does it: https://devcenter.heroku.com/articles/config-vars#setting-up-config-vars-for-a-deployed-application. Find out how your platform does it, and u...
How does a Linux/Unix Bash script know its own PID?
...
use $BASHPID or $$
See the manual for more information, including differences between the two.
TL;DRTFM
$$ Expands to the process ID of the shell.
In a () subshell, it expands to the process ID of the invoking shell, not the subshell.
$BASHPID Expands to the proc...
How do I simply create a patch from my latest git commit?
...
In general,
git format-patch -n HEAD^
(check help for the many options), although it's really for mailing them.
For a single commit just
git show HEAD > some-patch0001.patch
will give you a useable patch.
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How can I set Image source with base64
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Java: splitting a comma-separated string but ignoring commas in quotes
... String otherThanQuote = " [^\"] ";
String quotedString = String.format(" \" %s* \" ", otherThanQuote);
String regex = String.format("(?x) "+ // enable comments, ignore white spaces
", "+ // match a comma
"(?= ...
Why does the is operator return false when given null?
...ull.
expression can be cast to type. That is, a cast expression of the
form (type (expression) will complete without throwing an exception.
For more information, see 7.6.6 Cast expressions.
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String is immutable. What exactly is the meaning? [duplicate]
...taining "knowledge" and assigns it a reference str. Simple enough? Lets perform some more functions:
String s = str; // assigns a new reference to the same string "knowledge"
Lets see how the below statement works:
str = str.concat(" base");
This appends a string " base" to str. But wai...
Swift native base class or NSObject
... in Swift gets you Objective-C runtime flexibility but also Objective-C performance. Avoiding NSObject can improve performance if you don't need Objective-C's flexibility.
Edit:
With Xcode 6 beta 6, the dynamic attribute appears. This allows us to instruct Swift that a method should use dynamic di...
“’” showing on page instead of “ ' ”
...display the characters in. The exact answer depends on the server side platform / database / programming language used. Do note that the one set in HTTP response header has precedence over the HTML meta tag. The HTML meta tag would only be used when the page is opened from local disk file system ins...
How to undo the effect of “set -e” which makes bash exit immediately if any command fails?
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