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How to get key names from JSON using jq
...fy -r then you get a quoted string, which looks fine on-screen, but you usually don't want the quotes embedded in the string.
– MarkHu
Apr 26 '18 at 2:49
4
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How to programmatically click a button in WPF?
...rmClick() method in WPF, is there a way to click a WPF button programmatically?
8 Answers
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How get integer value from a enum in Rails?
...t the integer values for an enum from the class the enum is on:
Model.sale_infos # Pluralized version of the enum attribute name
That returns a hash like:
{ "plan_1" => 1, "plan_2" => 2 ... }
You can then use the sale_info value from an instance of the Model class to access the integer v...
Error: Tablespace for table xxx exists. Please DISCARD the tablespace before IMPORT
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A little late here but generally I've seen this problem occur when you get a 'tablespace full' error when running in a 'innodb_file_per_table' mode. Without going into too much detail (more here), the database server's tablespace is defined by the inno...
How to convert IEnumerable to ObservableCollection?
...insert the items one by one into the collection?
– Rexxo
Aug 31 '16 at 12:49
4
@Rexxo it will be ...
Checking to see if one array's elements are in another array in PHP
...s then why in PHP docs about this function they say "Returns FALSE if var exists and has a non-empty, non-zero value. Otherwise returns TRUE. The following things are considered to be empty: array() (an empty array)"? Source: php.net/manual/en/function.empty.php
– Pere
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Landscape printing from HTML
...s maybe why Google Documents creates a PDF when print is selected and then allows the user to open and print that.
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Using `textField:shouldChangeCharactersInRange:`, how do I get the text including the current typed
...the accepted answer, the following should work in Swift 3:
func textField(_ textField: UITextField, shouldChangeCharactersIn range: NSRange, replacementString string: String) -> Bool {
let newString = NSString(string: textField.text!).replacingCharacters(in: range, with: string)
return...
Best way to extract a subvector from a vector?
Suppose I have a std::vector (let's call it myVec ) of size N . What's the simplest way to construct a new vector consisting of a copy of elements X through Y, where 0
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Early exit from function?
... return;
}
This will send a return value of undefined to whatever called the function.
var x = myfunction();
console.log( x ); // console shows undefined
Of course, you can specify a different return value. Whatever value is returned will be logged to the console using the above example...