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Remove duplicate rows in MySQL
...licate rows. As an added benefit, future INSERTs that are duplicates will error out. As always, you may want to take a backup before running something like this...
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jQuery - checkbox enable/disable
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$(document).ready(function() {
$('#InventoryMasterError').click(function(event) { //on click
if (this.checked) { // check select status
$('.checkerror').each(function() { //loop through each checkbox
$('#selecctall').attr('disabled', 'disabled');
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Why is using onClick() in HTML a bad practice?
...doSomething() an element's onClick action in your HTML page, you'll get an error.
If, on the other hand, you create an eventListener for that element within that IIFE and call doSomething() when the listener detects a click event, you're good because the listener and doSomething() share the IIFE's ...
promise already under evaluation: recursive default argument reference or earlier problems?
...work:
x = 4
my.function <- function(x = x){}
my.function() # recursive error!
but this does work:
x = 4
my.function <- function(x){}
my.function(x = x) # works fine!
Function arguments exist in their own local environment.
R looks for variables first in the local environment, then in the ...
What's the difference between dependencies, devDependencies and peerDependencies in npm package.json
...rDependencies:
before 3.0: are always installed if missing, and raise an error if multiple incompatible versions of the dependency would be used by different dependencies.
expected to start on 3.0 (untested): give a warning if missing on npm install, and you have to solve the dependency yourself m...
Bare asterisk in function arguments?
...se. Passing extra positional arguments than the function expects, gives an error of this kind: foo() takes exactly 1 positional argument (2 given)
– Ajay M
May 27 '18 at 1:49
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Git, How to reset origin/master to a commit?
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Doesn't work. remote: error: denying non-fast-forward refs/heads/master (you should pull first)
– m0skit0
Jan 16 '15 at 10:36
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Where can I learn how to write C code to speed up slow R functions? [closed]
...trived example).
Edit 3: There is complexity in that you may run into C++ errors that are, to put it mildly, hard to grok. But to just use Rcpp rather than to extend it, you should hardly ever need it. And while this cost is undeniable, it is far eclipsed by the benefit of simpler code, less boil...
How to override to_json in Rails?
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You are getting ArgumentError: wrong number of arguments (1 for 0) because to_json needs to be overridden with one parameter, the options hash.
def to_json(options)
...
end
Longer explanation of to_json, as_json, and rendering:
In ActiveSupp...
How to include (source) R script in other scripts
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exists() seems to throw an error except of returning one in R 3.0.2.
– Michael Schubert
Dec 5 '13 at 10:52
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