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In mongoDb, how do you remove an array element by its index?
...his is how I do it.
exports.deletePregunta = function (req, res) {
let codTest = req.params.tCodigo;
let indexPregunta = req.body.pregunta; // the index that come from frontend
let inPregunta = `tPreguntas.0.pregunta.${indexPregunta}`; // my field in my db
let inOpciones = `tPreguntas.0.opciones.${...
How can I remove the first line of a text file using bash/sed script?
...l is much, much slower than the sed variant, by an order of magnitude. I'm testing it on a file of 500,000K lines (no more than 50 chars per line). However, I then realized I was using the FreeBSD version of tail (which comes with OS X by default). When I switched to GNU tail, the tail call was 10 t...
How to set data attributes in HTML elements
...date your data-attributes with some spread, use --
$('body').attr({ 'data-test': 'text' });
-- otherwise, $('body').attr('data-test', 'text'); will work just fine.
Another way you could accomplish this is using --
$.extend( $('body')[0].dataset, { datum: true } );
-- which restricts any attri...
How to make “if not true condition”?
...fic case, it does indeed work because sysa will be printed which makes the test statement come true. However, if ! [ $(true) ]; then echo false; fi would always print false because the true command does not write anything to stdout (even though the exit code is 0). That is why it needs to be rephras...
How do you deploy your ASP.NET applications to live servers?
...ments in sync, and we know exactly what is in production (we deploy to all test and uat environments the same way).
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Force browser to download image files on click
...ere Javascript is all around the place. Works only in Google Chrome (in my test setup), though.
– Pavel
Mar 13 '14 at 10:10
...
pull/push from multiple remote locations
... No. Since writing my question, I've read other web postings and then tested this thing. From reading other postings, I have got the suspicion that only the first line is used. I've just tested this: indeed, only the URL from the first line is inspected by git fetch. (Given this, I don't unders...
Is there a way to get the git root directory in one command?
...
How about "git rev-parse --git-dir" ?
F:\prog\git\test\copyMerge\dirWithConflicts>git rev-parse --git-dir
F:/prog/git/test/copyMerge/.git
The --git-dir option seems to work.
From git rev-parse manual page:
--git-dir
Show $GIT_DIR if defined else show the path to ...
multi-layer perceptron (MLP) architecture: criteria for choosing number of hidden layers and size of
...ng the number of neurons in the Hidden Layer:
During your model building, test obsessively; testing will reveal the signatures of "incorrect" network architecture. For instance, if you begin with an MLP having a hidden layer comprised of a small number of nodes (which you will gradually increase as...
What is the difference between Bower and npm?
.... runtime, where you avoid duplication), and use npm for other stuff, like testing, building, optimizing, checking, etc. (e.g. development time, where duplication is of less concern).
Update for npm 3:
npm 3 still does things differently compared to Bower. It will install the dependencies globally...