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MySQL COUNT DISTINCT
...love SQL because you get questions like "How do I count distinct user IDs" and the answer is just "Count(Distinct user_id)"
– Tim
Nov 13 '18 at 15:29
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TypeError: Illegal Invocation on console.log.apply
... Same argument applies to other functions such as console.log() and document.writeln(). So, always provide the correct execution context if using call() or apply(). Alternately, use bind() as @JohnWilliams has pointed out.
– Alan C. S.
Jun 29 '16 at ...
Difference between var_dump,var_export & print_r
What is the difference between var_dump , var_export and print_r ?
2 Answers
2
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AngularJs ReferenceError: $http is not defined
...'$http', function($scope,$http) {
//$http is working in this
}]);
and It has worked well.
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PostgreSQL, checking date relative to “today”
...e mydate > now() - interval '1 year';
If you only care about the date and not the time, substitute current_date for now()
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count number of lines in terminal output
couldn't find this on SO. I ran the following command in the terminal:
3 Answers
3
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Rails migrations: Undo default setting for a column
...n_default( :table_name, :column_name, from: nil, to: false )
end
Rails 3 and Rails 4
def up
change_column_default( :table_name, :column_name, nil )
end
def down
change_column_default( :table_name, :column_name, false )
end
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Javascript : Send JSON Object with Ajax?
...HttpRequest(); // new HttpRequest instance
xmlhttp.open("POST", "/json-handler");
xmlhttp.setRequestHeader("Content-Type", "application/json");
xmlhttp.send(JSON.stringify({name:"John Rambo", time:"2pm"}));
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Can I inject a service into a directive in AngularJS?
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You can do injection on Directives, and it looks just like it does everywhere else.
app.directive('changeIt', ['myData', function(myData){
return {
restrict: 'C',
link: function (scope, element, attrs) {
scope.name = myData.name...
How to vertical align an inline-block in a line of text?
I want to create an inline-block that will take on some unknown width and height. (It'll have a table inside it with content dynamically generated). Further, the inline-block should be placed inside a line of text, such as "my text (BLOCK HERE)". To make it look pretty, I'm trying to make the blo...