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Is there any particular difference between intval and casting to int - `(int) X`?
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I did benchmarking on ideone - (int) typecast is faster x 2 ! (int):ideone.com/QggNGc , intval():ideone.com/6Y8mPN
– jave.web
Aug 12 '14 at 18:32
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Proper way to handle multiple forms on one page in Django
...rmine which form is submitted from field names in POST data. Include some hidden inputs if your froms don't have unique fields with all possible values being not empty.
– Denis Otkidach
Oct 24 '09 at 16:39
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How to start new activity on button click
In an Android application, how do you start a new activity (GUI) when a button in another activity is clicked, and how do you pass data between these two activities?
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How do I dump an object's fields to the console?
... "<=", "<=>", "==", "===", "=~", ">", ">=", "[]", "[]=", "__id__", "__send__", "all?", "any?", "between?", "capitalize", "capitalize!", "casecmp", "center", "chomp", "chomp!", "chop", "chop!", "class", "clone", "collect", "concat", "count", "crypt", "delete", "delete!", "detect", "dis...
How to get a list of column names on Sqlite3 database?
... something like this... but it don't work create temporary table TmpCols (cid integer, name text, type text, nn bit, dflt_value, pk bit); .mode insert TmpCols .output cols PRAGMA TABLE_INFO('yourtable'); .read cols .mode csv .output stdout
– Jason
Jan 5 '1...
Create JSON object dynamically via JavaScript (Without concate strings)
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How did you know that the OP does not need to count the rows with ´rowNum´?
– Xotic750
May 12 '13 at 12:45
1...
PDO mysql: How to know if insert was successful
... be thrown in case of a database error, and it will bubble up to the site-wide error handler that eventually will result in a common 500 error page.
To handle the expected error, like a duplicate primary key, and if you have a certain scenario to handle this particular error, then use a try..catch o...
Why can't you modify the data returned by a Mongoose Query (ex: findById)
...el instance, you can call lean() on the query chain like so:
Survey.findById(req.params.id).lean().exec(function(err, data){
var len = data.survey_questions.length;
var counter = 0;
_.each(data.survey_questions, function(sq){
Question.findById(sq.question, function(err, q){
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Sankey Diagrams in R?
...ms. Here you can find an example. I also added a screenshot so you have an idea what it looks like.
# Load package
library(networkD3)
# Load energy projection data
# Load energy projection data
URL <- paste0(
"https://cdn.rawgit.com/christophergandrud/networkD3/",
"master/JSONda...
Rails select helper - Default selected value, how?
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This should do it:
<%= f.select :project_id, @project_select, :selected => params[:pid] %>
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