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Why is isNaN(null) == false in JS?
...is a value of the numeric data type representing an undefined or unrepresentable value, especially in floating-point calculations.
In most cases we think the answer to "is null numeric?" should be no. However, isNaN(null) == false is semantically correct, because null is not NaN.
Here's the algor...
c# datatable insert column at position 0
does anyone know the best way to insert a column in a datatable at position 0?
3 Answers
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What is lazy loading in Hibernate?
...e child when parent is loaded from the database.
Example :
If you have a TABLE ? EMPLOYEE mapped to Employee object and contains set of Address objects.
Parent Class : Employee class,
Child class : Address Class
public class Employee {
private Set address = new HashSet(); // contains set of ch...
MySQL: Enable LOAD DATA LOCAL INFILE
...
like this:
load data local infile '/home/tony/Desktop/2013Mini.csv' into table Reading_Table FIELDS TERMINATED BY ',' ENCLOSED BY '"' LINES TERMINATED BY '\n';
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Does my application “contain encryption”?
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does anyone know for the table they want us to fill out if we using InMobi SDK(based out of india) if this is considered a non-us-component and non-us-manufactured ?
– isJulian00
Dec 17 '18 at 3:31
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How do I read CSV data into a record array in NumPy?
...contents of a CSV file into a record array, much in the way that R's read.table() , read.delim() , and read.csv() family imports data to R's data frame?
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What does (x ^ 0x1) != 0 mean?
...hex notation
x ^ 0x1 will invert the last bit of x (refer to the XOR truth table in the link above if that's not clear to you).
So, the condition (0 != ( x ^ 0x1 )) will be true if x is greater than 1 or if the last bit of x is 0. Which only leaves x==1 as a value at which the condition will be fa...
SQL injection that gets around mysql_real_escape_string()
...:
$iId = mysql_real_escape_string("1 OR 1=1");
$sSql = "SELECT * FROM table WHERE id = $iId";
mysql_real_escape_string() will not protect you against this.
The fact that you use single quotes (' ') around your variables inside your query is what protects you against this. The following is als...
What is the point of function pointers?
...d what is going on inside of the abstraction. Also, implementing your own vtable in C and write object oriented code there is a really good learning experience.
– Florian
Jun 2 '12 at 10:49
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What's the difference between RANK() and DENSE_RANK() functions in oracle?
...SE_RANK() functions? How to find out nth salary in the following emptbl table?
10 Answers
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