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How to take screenshot of a div with JavaScript?
...ock waits for the button with the id btnSave to be clicked. When it is, it converts the widget div to a canvas element and then uses the saveAs() FileSaver interface (via FileSaver.js in browsers that don't support it natively) to save the div as an image named "Dashboard.png".
An example of this ...
Check if item is in an array / list
... are going to be doing repeated checks on the list, then it might be worth converting it to a set or frozenset, which can be faster for each check. Assuming your list of strs is called subjects:
subject_set = frozenset(subjects)
if query in subject_set:
# whatever
...
Is 1.0 a valid output from std::generate_canonical?
...The standard could ensure correct behavior if it were to specify that when converting from the output of the URNG to the RealType of generate_canonical, rounding is to be performed towards negative infinity; this would give a correct result in this case. As QOI, it would be good for libstdc++ to ma...
“Unknown class in Interface Builder file” error at runtime
...n't need to recreate the files.
Using XCode 4, in the Project Navigator, select the .m file that contains the class that it is complaining about
Go to View->Utilities->Show File Inspector(this will show the File Inspector to the right, with that .m-file info)
Open the Target Membership secti...
sort object properties and JSON.stringify
...ally and iterate through that array (which will be in the right order) and select each value from the object in that order. "hasOwnProperty" is checked also so you definitely have only the object's own properties. Here's an example:
var obj = {"a":1,"b":2,"c":3};
function iterateObjectAlphabetical...
Sorting HashMap by values [duplicate]
...exity of O(n^2) due to repeatedly looking up in values in two while loops. Converting the Entry Set to a List and then sorting the List based on a comparator would be a more efficient solution.
– picmate 涅
May 21 '16 at 2:53
...
How to get element by classname or id
...e Angular):
var wrappedResult = angular.element(result);
If you want to select from the element in a directive's link function you need to access the DOM reference instead of the the jqLite reference - element[0] instead of element:
link: function (scope, element, attrs) {
var elementResult =...
Missing include “bits/c++config.h” when cross compiling 64 bit program on 32 bit in Ubuntu
...ou want to change a 64 bit ELF to 32 bit ELF and it is showing error while converting.
You can simply run the commands
apt-get install gcc-multilib g++-multilib
which will update your libraries
Packages upgraded:
The following additional packages will be installed:
g++-8-multilib gcc-8-m...
How to catch SQLServer timeout exceptions
...= sql.CreateCommand();
cmd.CommandText = "DECLARE @i int WHILE EXISTS (SELECT 1 from sysobjects) BEGIN SELECT @i = 1 END";
cmd.ExecuteNonQuery(); // This line will timeout.
cmd.Dispose();
sql.Close();
}
catch (SqlException ex)
{
if (ex.Number == -2) {
Console.WriteLine (...
Parse string to date with moment.js
...'s string is in a standard Date format. Stephen Paul's answer shows how to convert any string, given a specific format, to a date that can be manipulated.
– Agamemnus
Mar 23 '19 at 21:05
...