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Difference between Pig and Hive? Why have both? [closed]
... answered Jul 28 '10 at 19:08
G__G__
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Mock functions in Go
...I would make downloader() a method on a type, and the type can hold the get_page dependency:
Method 1: Pass get_page() as a parameter of downloader()
type PageGetter func(url string) string
func downloader(pageGetterFunc PageGetter) {
// ...
content := pageGetterFunc(BASE_URL)
// ...
}
...
Order data frame rows according to vector with specific order
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I prefer to use ***_join in dplyr whenever I need to match data. One possible try for this
left_join(data.frame(name=target),df,by="name")
Note that the input for ***_join require tbls or data.frame
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Programmatically fire button click event?
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Yes,
[_button setHighlighted:YES];
[_button sendActionsForControlEvents:UIControlEventTouchUpInside];
[_button setHighlighted:NO];
But the problem here is you will not be able to see those event because its too fast . so what you...
Reference: mod_rewrite, URL rewriting and “pretty links” explained
... links" is an often requested topic, but it is rarely fully explained. mod_rewrite is one way to make "pretty links", but it's complex and its syntax is very terse, hard to grok, and the documentation assumes a certain level of proficiency in HTTP. Can someone explain in simple terms how "pretty l...
Call to undefined method mysqli_stmt::get_result
...r... if it isn't installed on your webspace you will have to work with BIND_RESULT & FETCH!
https://secure.php.net/manual/en/mysqli-stmt.bind-result.php
https://secure.php.net/manual/en/mysqli-stmt.fetch.php
share
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Where is JAVA_HOME on macOS Mojave (10.14) to Lion (10.7)?
...r Oracle JDK installed,
adding one of the following lines to your ~/.bash_profile file will set the environment variable accordingly.
export JAVA_HOME="$(/usr/libexec/java_home -v 1.6)"
or
export JAVA_HOME="$(/usr/libexec/java_home -v 1.7)"
or
export JAVA_HOME="$(/usr/libexec/java_home -v 1.8)"
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How to set JAVA_HOME in Linux for all users
...ileged user, ie. sudo vim
Press 'i' to get in insert mode
add:
export JAVA_HOME="path that you found"
export PATH=$JAVA_HOME/bin:$PATH
logout and login again, reboot, or use source /etc/profile to apply changes immediately in your current shell
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PHP Regex to get youtube video ID?
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Use parse_url() and parse_str().
(You can use regexes for just about anything, but they are very easy to make an error in, so if there are PHP functions specifically for what you are trying to accomplish, use those.)
parse_url takes...
Floating point vs integer calculations on modern hardware
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Poor man's FPU/ALU operation benchmark:
#include <stdio.h>
#ifdef _WIN32
#include <sys/timeb.h>
#else
#include <sys/time.h>
#endif
#include <time.h>
#include <cstdlib>
double
mygettime(void) {
# ifdef _WIN32
struct _timeb tb;
_ftime(&tb);
return (double)tb...