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PDO Prepared Inserts multiple rows in single query
...to create the $data array has 28 cols and is about 80,000 lines. The final script took 41s to complete.
Using array_push() to create $insert_values instead of array_merge() resulted in a 100X speed up with execution time of 0.41s.
The problematic array_merge():
$insert_values = array();
foreach(...
How to create a multi-tenant database with shared table structures?
...tenance cost significantly, you can still tame this beast using automation scripts over your cloud infrastructure such that everything becomes programmatically managed, requiring little to no human effort at all
– Korayem
Apr 12 '17 at 16:06
...
Array include any value from another array?
...gt;> foods.any? {|food| cheeses.include?(food) }
=> true
Benchmark script:
require "benchmark"
N = 1_000_000
puts "ruby version: #{RUBY_VERSION}"
CHEESES = %w(chedder stilton brie mozzarella feta haloumi).freeze
FOODS = %w(pizza feta foods bread biscuits yoghurt bacon).freeze
Benchmark.bm...
How do I clear a search box with an 'x' in bootstrap 3?
...to;
font-size: 14px;
cursor: pointer;
color: #ccc;
}
and Javascript:
$("#searchclear").click(function(){
$("#searchinput").val('');
});
Of course you have to write more Javascript for whatever functionality you need, e.g. to hide the 'x' if the input is empty, make Ajax requests...
How can I make an “are you sure” prompt in a Windows batchfile?
...RE=N before the prompt in order to clear the choice if you already ran the script before in that command window. Without it the default will remain the previously selected choice.
– isapir
Dec 26 '14 at 21:05
...
Getting URL hash location, and using it in jQuery
... Note that jQuery selectors can be used to execute custom javascript code, so using unsanitized hashes is horribly, horribly insecure. There is a half-assed fix for this in recent jQuery versions for selectors which contain a # before the injected code, but you are still at risk if you ...
How to search and replace globally, starting from the cursor position and wrapping around the end of
...d('<cword>')<CR>>//<Left>
" And that command calls a script-local function.
command! -nargs=1 Substitute call s:Substitute(<q-args>)
function! s:Substitute(patterns)
if getregtype('s') != ''
let l:register=getreg('s')
endif
normal! qs
redir => l:replacemen...
Why does Math.Round(2.5) return 2 instead of 3?
...even is supposed to minimize that) (a).
Follow these links for the MSDN descriptions of:
Math.Floor, which rounds down towards negative infinity.
Math.Ceiling, which rounds up towards positive infinity.
Math.Truncate, which rounds up or down towards zero.
Math.Round, which rounds to the nearest i...
Comments in command-line Zsh
...arbaz the stack can be manipulated with read -z and print -z, so with some scripting and temporary files you could. But then a custom zle widget for saving the command line to a temp file might be simpler, and shared history will be simpler still.
– Michał Politowski
...
What unique features does Firebug have that are not built-in to Firefox?
... differences have mainly reduced to the following points:
Can't stop the script execution on DOM mutations, XHRs, or cookie changes.
XPaths can't be copied.
Missing an events side panel in the Inspector (though events are displayed within the DOM structure).
Missing a DOM side panel in the Inspect...