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How are Python's Built In Dictionaries Implemented?
... I usually know what I'm talking about. But I think you can get that point from one of Raymond Hettinger's talks.
– Aaron Hall♦
Sep 29 '17 at 22:23
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ICollection Vs List in Entity Framework
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ICollection differs from IEnumerable in that you can actually add items to the collection, whereas with IEnumerable you can't. So in your POCO classes, for instance, you want to use ICollection if you intend to allow the collection to be added t...
Determine if a String is an Integer in Java [duplicate]
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Or you can enlist a little help from our good friends at Apache Commons : StringUtils.isNumeric(String str)
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Concept of void pointer in C programming
...ned at 4-byte boundary to be dereferenced).
For example, reading uint16_t from void*:
/* may receive wrong value if ptr is not 2-byte aligned */
uint16_t value = *(uint16_t*)ptr;
/* portable way of reading a little-endian value */
uint16_t value = *(uint8_t*)ptr
| ((*((uint8_t*)ptr...
How do I PHP-unserialize a jQuery-serialized form?
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You shouldn't have to unserialize anything in PHP from the jquery serialize method. If you serialize the data, it should be sent to PHP as query parameters if you are using a GET method ajax request or post vars if you are using a POST ajax request. So in PHP, you would acce...
How to find out which view is focused?
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It is possible to get hosting Activity from a View and call getCurrentFocus(), but not that reliable.
– Eido95
Dec 29 '16 at 12:19
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What is `git diff --patience` for?
How does the patience algorithm differ from the default git diff algorithm, and when would I want to use it?
3 Answers
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How do you write a migration to rename an ActiveRecord model and its table in Rails?
...e caveats:
Let's use a real-world example I faced today: renaming a model from 'Merchant' to 'Business.'
Don't forget to change the names of dependent tables and models in
the same migration. I changed my Merchant and MerchantStat models to Business and BusinessStat at the same time. Otherwise I'...
What is the correct way to represent null XML elements?
...ould mean that series is an inapplicable element to the current element.)
From: The W3C
XML Schema: Structures introduces a
mechanism for signaling that an
element should be accepted as ·valid·
when it has no content despite a
content type which does not require or
even necessarily ...
How to get the number of Characters in a String?
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You can try RuneCountInString from the utf8 package.
returns the number of runes in p
that, as illustrated in this script: the length of "World" might be 6 (when written in Chinese: "世界"), but its rune count is 2:
package main
import "fmt"
import "...