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What does “var FOO = FOO || {}” (assign a variable or an empty object to that variable) mean in Java
...s about the donut function.
So you need to use var FOO = FOO || {}; which means "FOO will be assigned to FOO (if it exists already) or a new blank object (if FOO does not exist already).
Solution:
var FOO = FOO || {};
// Definition of co-worker Bart in bart.js
FOO.skateboard = function() {
ale...
Using bitwise OR 0 to floor a number
... when you're doing | 0, you're essentially doing is & 0xFFFFFFFF. This means, any number that is represented as 0x80000000 (2147483648) or greater will return as a negative number.
For example:
// Safe
(2147483647.5918 & 0xFFFFFFFF) === 2147483647
(2147483647 & 0xFFFFFFFF) ==...
How do I access my SSH public key?
...
cat ~/.ssh/id_rsa.pub or cat ~/.ssh/id_dsa.pub
You can list all the public keys you have by doing:
$ ls ~/.ssh/*.pub
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What is the difference between BIT and TINYINT in MySQL?
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Bit is not safe for now.
I changed to tinyint(1) and worked perfectly. I mean that you only need a value to diferentiate if it's 1 or 0 and tinyint(1) it's ok for that
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How to delete duplicates on a MySQL table?
I need to DELETE duplicated rows for specified sid on a MySQL table.
25 Answers
25...
Union Vs Concat in Linq
...nces of items. Your items have different references, thus they all are considered different. When you cast to base type X, reference is not changed.
If you will override Equals and GetHashCode (used to select distinct items), then items will not be compared by reference:
class X
{
public int I...
How do I get a list of all the duplicate items using pandas in python?
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Method #1: print all rows where the ID is one of the IDs in duplicated:
>>> import pandas as pd
>>> df = pd.read_csv("dup.csv")
>>> ids = df["ID"]
>>> df[ids.isin(ids[ids.duplicated()])].sort("ID")
ID ENROLLMENT_DATE ...
Storyboard doesn't contain a view controller with identifier
...using Storyboards.
I was having the same issue, but I could not find the "Identifier" field in the inspector.
Instead, just set the field named "Storyboard ID" to what you would name the Identifier. This field can be found under the "Show the Identity inspector" tab in the inspector.
[Note - comme...
How do I use cascade delete with SQL Server?
...ER TABLE dbo.T2
ADD CONSTRAINT FK_T1_T2_Cascade
FOREIGN KEY (EmployeeID) REFERENCES dbo.T1(EmployeeID) ON DELETE CASCADE
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Get itunes link for app before submitting
...
The manual way:
Your should copy your "Apple ID" from iTunes connect and use this link:
http://itunes.apple.com/us/app/APPNAME/idXXXXXXXXX
Would open the US store ("APPNAME" is that app name and XXXXXXXXX is the "Apple ID". You can use more general method (Recommended...