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How to delete/unset the properties of a javascript object? [duplicate]
...ut if you do wish to delete variables in the global namespace, you can use it's global object such as window, or using this in the outermost scope i.e
var a = 'b';
delete a; //false
delete window.a; //true
delete this.a; //true
http://perfectionkills.com/understanding-delete/
another fact is tha...
When should I use RequestFactory vs GWT-RPC?
...uestFactory is "RPC-by-interface".
RPC is more convenient to get started with, because you write fewer lines of code and use the same class on both the client and the server. You might create a Person class with a bunch of getters and setters and maybe some simple business logic for further slicin...
iOS 7.0 No code signing identities found
...ble Click to put in KeyChain.
For Provisioning profile
Create New or Edit existing Provisioning profile.
Download and install.
For BundleIdentifier.
com.yourcompanyName.Something (Put same as in AppId)
CodeSigningIdentity.
Select The Provisioning profile which you created.
...
Is there a command like “watch” or “inotifywait” on the Mac?
... watch a folder on my Mac (Snow Leopard) and then execute a script (giving it the filename of what was just moved into a folder (as a parameter... x.sh "filename")).
...
Can I add a UNIQUE constraint to a PostgreSQL table, after it's already created?
...follow
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edited Aug 2 '17 at 10:42
a_horse_with_no_name
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jquery change class name
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You can set the class (regardless of what it was) by using .attr(), like this:
$("#td_id").attr('class', 'newClass');
If you want to add a class, use .addclass() instead, like this:
$("#td_id").addClass('newClass');
Or a short way to swap classes using .toggleC...
How do I compare two string variables in an 'if' statement in Bash? [duplicate]
...
For string equality comparison, use:
if [[ "$s1" == "$s2" ]]
For string does NOT equal comparison, use:
if [[ "$s1" != "$s2" ]]
For the a contains b, use:
if [[ $s1 == *"$s2"* ]]
(and make sure to add spaces between the symbols):
B...
'POCO' definition
...eans? I am encountering the term more and more often, and I'm wondering if it is only about plain classes or it means something more?
...
What does 'synchronized' mean?
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The synchronized keyword is all about different threads reading and writing to the same variables, objects and resources. This is not a trivial topic in Java, but here is a quote from Sun:
synchronized methods enable a simple
strategy for preventing thread
interference and memory consi...
How do you set your pythonpath in an already-created virtualenv?
What file do I edit, and how? I created a virtual environment.
6 Answers
6
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