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How can two strings be concatenated?
...
or if you often want to join strings from a vector (like implode() from PHP):
implode <- function(..., sep='') {
paste(..., collapse=sep)
}
Allows you do do this:
p('a', 'b', 'c')
#[1] "abc"
vec <- c('a', 'b', 'c')
implode(vec)
#[1] "abc"
implode(vec, sep=', ')
#[1] "a, b, c"
Als...
node.js remove file
...ar fs = require('fs');
var gutil = require('gulp-util');
fs.exists('./www/index.html', function(exists) {
if(exists) {
//Show in green
console.log(gutil.colors.green('File exists. Deleting now ...'));
fs.unlink('./www/index.html');
} else {
//Show in red
console.log(gutil.co...
Android: show soft keyboard automatically when focus is on an EditText
...ode line you have mentioned. :) Once again thanks.
– PHP Avenger
Nov 16 '13 at 21:42
I get a 'cannot resolve getWindow...
What does mysql error 1025 (HY000): Error on rename of './foo' (errorno: 150) mean?
...using the column name, but instead you would have to find the name used to index it. To find that, issue the following select:
SHOW CREATE TABLE region;
This should show you the name of the index, something like this:
CONSTRAINT region_ibfk_1 FOREIGN
KEY (country_id) REFERENCES
country...
Rename a dictionary key
... a O(N) in complexity:
def rename(self,key,new_key):
ind = self._keys.index(key) #get the index of old key, O(N) operation
self._keys[ind] = new_key #replace old key with new key in self._keys
self[new_key] = self[key] #add the new key, this is added at the end of self._keys
...
How to use the PI constant in C++
...rd library which is magnitudes bigger than C++' (e.g. Python, Haskell, C#, PHP, Delphi, Erlang, Java, ......). From personal experience, that elitist not gonna use libs-opinion is a pest and probably the number one reason for bad software written in C++.
– Sebastian Mach
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Remove items from one list in another
...
You don't need an index, as the List<T> class allows you to remove items by value rather than index by using the Remove function.
foreach(car item in list1) list2.Remove(item);
...
Fixed page header overlaps in-page anchors
...es links inside the padding area non-clickable. To fix this you must use z-index, and set the links value higher than the anchor's. Remember you topbar should have the highest z-index value, so the page's content don't float ontop of the topbar when you scroll.
– MutttenXd
...
In java how to get substring from a string till a character c?
...
look at String.indexOf and String.substring.
Make sure you check for -1 for indexOf.
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Styling HTML email for Gmail
... tool from zurb to inline all of your styles:
http://zurb.com/ink/inliner.php
This comes in extremely handy when using templates like those mentioned above from mailchimp, campaign monitor, etc. as they, as you have found, will not work in some email programs. This tool leaves your style section ...