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How to change the type of a field?
...erator (Mongo 4.2) which in this case modifies a field.
This can be simply read as "$set" the value of "a" to "$a" converted "$toString".
What's really new here, is being able in Mongo 4.2 to reference the document itself when updating it: the new value for "a" is based on the existing value of "$a"...
Get all non-unique values (i.e.: duplicate/more than one occurrence) in an array
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This is my answer from the duplicate thread (!):
When writing this entry 2014 - all examples were for-loops or jQuery. Javascript has the perfect tools for this: sort, map and reduce.
Find duplicate items
var names = ['Mike', 'Matt', 'Nancy', 'Adam', 'Jenn...
Handling a colon in an element ID in a CSS selector [duplicate]
...arator using the web.xml file as init-param of javax.faces.SEPARATOR_CHAR
Read this:
Is it possible to change the element id separator in JSF?
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CSS two divs next to each other
... then it must come first in the HTML source. This breaks the left-to-right read order, which could be confusing if the page is displayed with styles turned off. If that's the case, it might be better to use a wrapper div and absolute positioning:
<div id="wrap" style="position:relative;">
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Create JSON object dynamically via JavaScript (Without concate strings)
...efulness in properly spacing the code you submit here? It's much harder to read without spacing.
– Kevin Lewis
Dec 26 '15 at 10:35
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What is the purpose of .PHONY in a Makefile?
...sk. The task will always be executed anyway, and the Makefile will be more readable.
– Bernard
Jul 22 '16 at 3:11
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How can I initialise a static Map?
...gree, this is the nicest way of initializing a constant map. Not only more readable but also since Collections.unmodifiableMap returns a read-only view of the underlying map (that still can be modified).
– crunchdog
May 3 '12 at 7:29
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Regular vs Context Free Grammars
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Nope, that is short description, please read again and check the image.
– Ahmed Salem
Jan 29 at 6:43
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What is the use of ObservableCollection in .net?
...ss and then use the event args to react in some way to the changes. WPF already has many operations like refreshing the UI built in so you get them for free when using ObservableCollections
class Handler
{
private ObservableCollection<string> collection;
public Handler()
{
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Filter by process/PID in Wireshark
...ith main process and you've got a perfect port-to-process mapper. However, reading the bug from question comment, the module isn't as simple to create.
– Vesper
Mar 1 '17 at 6:59
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