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MySQL: What's the difference between float and double?
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Perhaps this example could explain.
CREATE TABLE `test`(`fla` FLOAT,`flb` FLOAT,`dba` DOUBLE(10,2),`dbb` DOUBLE(10,2));
We have a table like this:
+-------+-------------+
| Field | Type |
+-------+-------------+
| fla | float |
| flb | float |
| dba ...
How to get the clicked link's href with jquery?
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$(".testClick").click(function () {
var value = $(this).attr("href");
alert(value );
});
When you use $(".className") you are getting the set of all elements that have that class. Then when you call attr...
Best way to iterate through a Perl array
...and #4, but not by much in most instances.
You could write a benchmark to confirm, but I suspect you'll find #1 and #4 to be slightly faster because the iteration work is done in C instead of Perl, and no needless copying of the array elements occurs. ($_ is aliased to the element in #1, but #2 and...
Handler “ExtensionlessUrlHandler-Integrated-4.0” has a bad module “ManagedPipelineHandler” in its mo
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Confirmed solution for windows 10 Pro.
– Zoomzoom
Oct 18 '19 at 13:18
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Compile time string hashing
...ement case is dangerous. You'll want to do an == comparison afterwards to confirm it worked.
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Concatenate a vector of strings/character
...cdefghijklmnopqrstuvwxyz"
And some benchmarks:
require(microbenchmark)
test <- stri_rand_lipsum(100)
microbenchmark(stri_paste(test, collapse=''), paste(test,collapse=''), do.call(paste, c(as.list(test), sep="")))
Unit: microseconds
expr min lq ...
Angularjs ng-model doesn't work inside ng-if
.../script>
<script>
function main($scope) {
$scope.testa = false;
$scope.testb = false;
$scope.testc = false;
$scope.obj = {test: false};
}
</script>
<div ng-app >
<div ng-controller="main">
Test A:...
When does static class initialization happen?
...extual order as defined in the class.
Consider the example:
public class Test {
static String sayHello() {
return a;
}
static String b = sayHello(); // a static method is called to assign value to b.
// but its a has not been initialized yet.
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Calling a Method From a String With the Method's Name in Ruby
...6
Using eval
eval "s.length" #=> 6
Benchmarks
require "benchmark"
test = "hi man"
m = test.method(:length)
n = 100000
Benchmark.bmbm {|x|
x.report("call") { n.times { m.call } }
x.report("send") { n.times { test.send(:length) } }
x.report("eval") { n.times { eval "test.length" }...
Bash, no-arguments warning, and case decisions
...k as intended using this exact format. Upon reading your response I even retested both for the match and lack thereof. $# will not contain a value if not specified, if there is no positional argument to match what ever # is in your scenario. It makes no sense why bash would assume a value in a posi...