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Why can't decimal numbers be represented exactly in binary?
...me point, whether it's system memory or the theoretical maximum size of an array. This is an entirely separate point to the main one of this answer, however. Even if you had a genuinely arbitrarily large number of bits to play with, you still couldn't represent decimal 0.1 exactly in a floating bina...
Delete rows from a pandas DataFrame based on a conditional expression involving len(string) giving K
.... of 7 runs, 1000 loops each)
A column is basically a Series i.e a NumPy array, it can be indexed without any cost. For folks interested in how the underlying memory organization plays into execution speed here is a great Link on Speeding up Pandas:
...
Java: Getting a substring from a string starting after a particular character
...
this code will throw an Array Index Out of Bounds error if the separator is not found.
– Patrick Parker
Jul 24 '18 at 20:59
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How can you dynamically create variables via a while loop? [duplicate]
... answer, and the only solution in specific circumstances. Say you have an array that represents an inventory. Say this inventory can have containers inside of it, and these containers has an inventory of its own, representing the items the container is holding. This is the only way that I know of...
jQuery validate: How to add a rule for regular expression validation?
...ject string is different.
Some other ideas I had was be to enable you use arrays of regex's, and another rule for the negation of regex's:
$("password").rules("add", {
regex: [
/^[a-zA-Z'.\s]{8,40}$/,
/^.*[a-z].*$/,
/^.*[A-Z].*$/,
/^.*[0-9].*$/
],
'!rege...
Splitting a Java String by the pipe symbol using split(“|”)
...|" or " |||"
But test.split("\\|"); will return different length strings arrays for the same examples.
use reference: link
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How to check whether an object has certain method/property?
... In GetType() there is method like GetProperties(). It is returning array of PropertyInfo. But how can I use GetProperties() method?
– Yogesh Patel
Mar 25 '19 at 4:56
a...
What is a handle in C++?
... return something->doit(a, b);
}
Or it uses it as an index to an array/vector:
int doSomething(HANDLE s, int a, int b) {
int index = (int)s;
try {
Something& something = vecSomething[index];
return something.doit(a, b);
} catch (boundscheck& e) {
...
how do i remove a comma off the end of a string?
...h($a as $b)
$string .= $b . ',';
much better is to collect items in an array and then join it with a delimiter you need
foreach($a as $b)
$result[] = $b;
$result = implode(',', $result);
this solves trailing and double delimiter problems that usually occur with concatenation
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What does 'const static' mean in C and C++?
...with all the other global variables, such as explicit "strings" and global arrays. This is opposing to the code segment.
– spoulson
Oct 7 '08 at 10:02
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