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How to access command line parameters?
...n how to take parameters from the command line. fn main() is only shown with an empty parameter list in all examples.
11 ...
How to vertically align an image inside a div
...nd the best cross-browser) way as I know is to use an inline-block helper with height: 100% and vertical-align: middle on both elements.
So there is a solution: http://jsfiddle.net/kizu/4RPFa/4570/
.frame {
height: 25px; /* Equals maximum image height */
width: 160px;
borde...
Rails 3 check if attribute changed
...available on all models by default). The documentation is really good, but it lets you do things such as:
@user.street1_changed? # => true/false
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Compiling dynamic HTML strings from database
Nested within our Angular app is a directive called Page, backed by a controller, which contains a div with an ng-bind-html-unsafe attribute. This is assigned to a $scope var called 'pageContent'. This var gets assigned dynamically generated HTML from a database. When the user flips to the next page...
Html.RenderPartial() syntax with Razor
This works, because it returns the result of partial view rendering in a string:
4 Answers
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Javascript reduce() on Object
... in this case are the Object.values. Here is a concise ES6 implementation with that in mind:
const add = {
a: {value:1},
b: {value:2},
c: {value:3}
}
const total = Object.values(add).reduce((t, {value}) => t + value, 0)
console.log(total) // 6
or simply:
const add = {
a: 1,
b: 2,
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SQL update from one Table to another based on a ID match
I have a database with account numbers and card numbers . I match these to a file to update any card numbers to the account number, so that I am only working with account numbers.
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break out of if and foreach
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if is not a loop structure, so you cannot "break out of it".
You can, however, break out of the foreach by simply calling break. In your example it has the desired effect:
foreach($equipxml as $equip) {
$current_device = $equip->xpath("name");
if ( $current_device[0] ==...
How to remove leading and trailing zeros in a string? Python
...ou can do s.strip("0") or "0": if your string turns into the empty string, it will evaluate as False by or and will be replaced by the desired string "0"
– tarulen
May 31 '18 at 12:14
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Get Mouse Position
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MouseInfo.getPointerInfo().getLocation() might be helpful. It returns a Point object corresponding to current mouse position.
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