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How do I trim whitespace?
.... So an elegant and one-liner string function we can use is translate.
' hello apple'.translate(None, ' \n\t\r')
OR if you want to be thorough
import string
' hello apple'.translate(None, string.whitespace)
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...
Encoding as Base64 in Java
...lt;/version>
</dependency>
Sample code:
String inputContent = "Hello Việt Nam";
String base64String = BaseEncoding.base64().encode(inputContent.getBytes("UTF-8"));
// Decode
System.out.println("Base64:" + base64String); // SGVsbG8gVmnhu4d0IE5hbQ==
byte[] contentInBytes = BaseEncoding....
std::string formatting like sprintf
...to a std::string:
char buff[100];
snprintf(buff, sizeof(buff), "%s", "Hello");
std::string buffAsStdStr = buff;
But I'm not sure why you wouldn't just use a string stream? I'm assuming you have specific reasons to not just do this:
std::ostringstream stringStream;
stringStream <<...
What's the best way to use R scripts on the command line (terminal)?
.../bin/env Rscript
args = commandArgs(trailingOnly = TRUE)
message(sprintf("Hello %s", args[1L]))
The first line is the shebang line. It’s best practice to use /usr/bin/env Rscript instead of hard-coding the path to your R installation. Otherwise you risk your script breaking on other computers.
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How to grep a text file which contains some binary data?
...ou want.
You can see that program in action here, where it:
pax$ printf 'Hello,\tBob\nGoodbye, Bob\n' | ./filterProg
Hello,{{09}}Bob
Goodbye, Bob
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jQuery removeClass wildcard
...
The removeClass function takes a function argument since jQuery 1.4.
$("#hello").removeClass (function (index, className) {
return (className.match (/(^|\s)color-\S+/g) || []).join(' ');
});
Live example: http://jsfiddle.net/xa9xS/1409/
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What is the colon operator in Ruby?
...
In ruby each object has a unique object identifier, if you write puts "hello".object_id in your irb and hit return for 2 different times, you will get 2 different returning value,but if you write :hello.object_id 2 times you will only get the same one returning value.
That should have explained...
Resource interpreted as stylesheet but transferred with MIME type text/html (seems not related with
...looks it in the current directory, for example if you went to yoursite.com/hello/trilochan , it will then looks under hello/css/bootsrap.min.css , but it is really under yoursite.com/css/bootsrap.min.css, I hope I cleared this, / refers to root, and without / , it looks in current directory.
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How to extract URL parameters from a URL with Ruby or Rails?
... Levi answer above -
Rack::Utils.parse_query URI("http://example.com?par=hello&par2=bye").query
For a string like above url, it will return
{ "par" => "hello", "par2" => "bye" }
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How to assign string to bytes array
...t (
"fmt"
"strings"
)
func main() {
stringSlice := []string{"hello", "world"}
stringByte := strings.Join(stringSlice, " ")
// Byte array value
fmt.Println([]byte(stringByte))
// Corresponding string value
fmt.Println(string([]byte(stringByte)))
}
Output:
[1...