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Why is Dictionary preferred over Hashtable in C#?
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Fun. The Dictionary<T> source code looks a lot cleaner and faster. It might be better to use Dictionary and implement your own synchronization. If the Dictionary reads absolutely need to be current, then you'd simply ...
How do I convert a PDF document to a preview image in PHP? [closed]
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@think123 use $im->thumbnailImage(1500, 0); That will set your jpg image to a width of 1500 and retain scale. See documentation
– Kevin Jantzer
Jan 21 '14 at 17:37
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How to get a function name as a string?
In Python, how do I get a function name as a string, without calling the function?
12 Answers
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In Typescript, How to check if a string is Numeric
...y to convert a string to a number is with Number, not parseFloat.
Number('1234') // 1234
Number('9BX9') // NaN
You can also use the unary plus operator if you like shorthand:
+'1234' // 1234
+'9BX9' // NaN
Be careful when checking against NaN (the operator === and !== don't work as expected wi...
Emulate a do-while loop in Python?
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yes. and add more fun by renaming condition to do throughout so that the second line reads while do: :D
– SpeedCoder5
Aug 6 '18 at 17:38
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Is it possible to have a multi-line comments in R? [duplicate]
...k another time ` # if(FALSE){ ` and ` # } `
– Gabriel123
Sep 6 '17 at 11:20
add a comment
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How to call Base Class's __init__ method from the child class? [duplicate]
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123
You could use super(ChildClass, self).__init__()
class BaseClass(object):
def __init__(se...
How do I delete all messages from a single queue using the CLI?
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123
rabbitmqadmin is the perfect tool for this
rabbitmqadmin purge queue name=name_of_the_queue_t...
How to remove a field completely from a MongoDB document?
... looks like this:
{
name: 'book',
tags: [
{
words: ['abc','123'],
lat: 33,
long: 22
}, {
words: ['def','456'],
lat: 44,
long: 33
}
]
}
To remove the column words from the embedded document, do this:
db.example.update(
{'tags': {'$exists':...
Centering floating divs within another div
...rizontal */
and the floated children get aligned center (DEMO)
Just for fun, to get vertical alignment as well just add:
align-items: center; /* align vertical */
DEMO
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