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Checking if object is empty, works with ng-show but not from controller?
...way, ng-show should keep working, and in your controller you can just do:
if ($scope.items) {
// items have value
} else {
// items is still null
}
And in your $http callbacks, you do the following:
$http.get(..., function(data) {
$scope.items = {
data: data,
// other...
Check if an element is a child of a parent
...
If you are only interested in the direct parent, and not other ancestors, you can just use parent(), and give it the selector, as in target.parent('div#hello').
Example: http://jsfiddle.net/6BX9n/
function fun(evt) {
va...
PDO mysql: How to know if insert was successful
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No more like this, $value = $stmt->execute(); if($value){//true}else{//false}
– Ólafur Waage
Jun 3 '11 at 8:40
23
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Does the ternary operator exist in R?
... asks, is there a control sequence in R similar to C's ternary operator ? If so, how do you use it? Thanks!
7 Answers
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Ternary operation in CoffeeScript
...everything is an expression, and thus results in a value, you can just use if/else.
a = if true then 5 else 10
a = if false then 5 else 10
You can see more about expression examples here.
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Using C# to check if string contains a string in string array
I want to use C# to check if a string value contains a word in a string array. For example,
29 Answers
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pretty-print JSON using JavaScript
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Pretty-printing is implemented natively in JSON.stringify(). The third argument enables pretty printing and sets the spacing to use:
var str = JSON.stringify(obj, null, 2); // spacing level = 2
If you need syntax highlighting, you might use some regex magic like so:
function...
How do I prompt a user for confirmation in bash script? [duplicate]
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read -p "Are you sure? " -n 1 -r
echo # (optional) move to a new line
if [[ $REPLY =~ ^[Yy]$ ]]
then
# do dangerous stuff
fi
I incorporated levislevis85's suggestion (thanks!) and added the -n option to read to accept one character without the need to press Enter. You can use one or both o...
IsNothing versus Is Nothing
...for or against using IsNothing as opposed to Is Nothing (for example, If IsNothing(anObject) or If anObject Is Nothing... )? If so, why?
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gradle build fails on lint task
...nd Gradle Android Plugin 0.7. Yesterday I've added Jake Wharton's ButterKnife library in my gradle build script:
10 Answe...