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Is it possible to clone html element objects in JavaScript / JQuery?
...ipt using the cloneNode() method:
// Create a clone of element with id ddl_1:
let clone = document.querySelector('#ddl_1').cloneNode( true );
// Change the id attribute of the newly created element:
clone.setAttribute( 'id', newId );
// Append the newly created element on element p
document.quer...
Python memory leaks [closed]
...arbage collection module actually can have debug flags set. Look at the set_debug function. Additionally, look at this code by Gnibbler for determining the types of objects that have been created after a call.
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Advantages of using prototype, vs defining methods straight in the constructor? [duplicate]
...tances? This is because ins1 and ins2 share the same calc() function. In order to do this with public methods created during construction, you'd have to assign the new method to each instance that has been created, which is an awkward task. This is because ins1 and ins2 would have their own, indi...
Making a property deserialize but not serialize with json.net
...eof(IgnoreOnSerializing))]
public string IgnoreOnSerializingSetter { set { _ignoreOnSerializing = value; } }
[JsonIgnore]
private string _ignoreOnSerializing;
[JsonIgnore]
public string IgnoreOnSerializing
{
get { return this._ignoreOnSerializing; }
set { this._ignoreOnSerializing = value;...
JavaScript object: access variable property by name as string [duplicate]
...racket notation.
If you NEED a function for it, here it is:
function read_prop(obj, prop) {
return obj[prop];
}
To answer some of the comments below that aren't directly related to the original question, nested objects can be referenced through multiple brackets. If you have a nested objec...
Handler vs AsyncTask
...hread.
AsyncTask provides a simple method to handle background threads in order to update the UI without blocking it by time consuming operations.
The answer is that both can be used to update the UI from background threads, the difference would be in your execution scenario. You may consider usin...
Makefile variable as prerequisite
...
One possible problem with the given answers so far is that dependency order in make is not defined. For example, running:
make -j target
when target has a few dependencies does not guarantee that these will run in any given order.
The solution for this (to guarantee that ENV will be checked...
Why use the yield keyword, when I could just use an ordinary IEnumerable?
... and you would like to see the first handful (5) records of the year.
In order to accomplish this, the list must be sorted ascending by date, and then have the first 5 taken. If this was done without yield, the entire list would have to be sorted, right up to making sure the last two dates were in...
How to read the database table name of a Model instance?
...
Found the answer myself: the _meta attribute of an instance has the information:
model_instance._meta.db_table
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How to check if a file exists in Documents folder?
... Or just [0] via index accessing
– temporary_user_name
Dec 16 '14 at 0:09
firstObject is more safe than [0] a...