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Are there disadvantages to using a generic varchar(255) for all text-based fields?
I have a contacts table which contains fields such as postcode , first name , last name , town , country , phone number etc, all of which are defined as VARCHAR(255) even though none of these fields will ever come close to having 255 characters. (If you're wondering, it's this way becaus...
What is the instanceof operator in JavaScript?
The instanceof keyword in JavaScript can be quite confusing when it is first encountered, as people tend to think that JavaScript is not an object-oriented programming language.
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jQuery: Select data attributes that aren't empty?
I'm trying to select all elements that have a data-go-to attribute that is not empty.
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How to overload __init__ method based on argument type?
Let's say I have a class that has a member called data which is a list.
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How do you set a default value for a MySQL Datetime column?
How do you set a default value for a MySQL Datetime column?
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AI2 Keep Awake
German version Version Adjustments 1.0 (2024-10-28) Initial Version 1.1 (2024-11-03) Internal adjustments Notice: The lifespan of the device battery will be significantly reduced by using this extension. Do not set WakeLocks if you do not really need them, use...
class
What does class << self do in Ruby ?
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When you exit a C application, is the malloc-ed memory automatically freed?
Let's say I have the following C code:
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Can someone explain the dollar sign in Javascript?
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How do I concatenate or merge arrays in Swift?
If there are two arrays created in swift like this:
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