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What does it mean if a Python object is “subscriptable” or not?
...cally means that the object implements the __getitem__() method. In other words, it describes objects that are "containers", meaning they contain other objects. This includes strings, lists, tuples, and dictionaries.
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what is “strict mode” and how is it used?
...ve been looking over the JavaScript reference on the Mozilla Developer Network, and I came across something called "strict mode" . I read it over and I'm having trouble understanding what it does. Can someone briefly explain (in general) what its purpose is and how it is useful?
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Amazon Interview Question: Design an OO parking lot [closed]
...ns will it have. It should say, full, empty and also be able to find spot for Valet parking. The lot has 3 different types of parking: regular, handicapped and compact.
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How does the Amazon Recommendation feature work?
...on of primary driver items and the identification of affinity items (accessory upsell, cross sell).
Keep in mind the data sources they have to mine...
Purchased shopping carts = real money from real people spent on real items = powerful data and a lot of it.
Items added to carts but aband...
Is there a Python equivalent of the C# null-coalescing operator?
In C# there's a null-coalescing operator (written as ?? ) that allows for easy (short) null checking during assignment:
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How can I check a C# variable is an empty string “” or null? [duplicate]
I am looking for the simplest way to do a check. I have a variable that can be equal to "" or null. Is there just one function that can check if it's not "" or null?
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What exactly is an Assembly in C# or .NET?
Could you please explain what is an Assembly in C# or .NET?
9 Answers
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Open link in new tab or window [duplicate]
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You should add the target="_blank" and rel="noopener noreferrer" in the anchor tag.
For example:
<a target="_blank" rel="noopener noreferrer" href="http://your_url_here.html">Link</a>
Adding rel="noopener noreferrer" is not mandatory, but it's a recommended secur...
Check synchronously if file/directory exists in Node.js
How can I synchronously check, using node.js , if a file or directory exists?
15 Answers
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How to check if the string is empty?
... should use myString == "". See the documentation on Truth Value Testing for other values that are false in Boolean contexts.
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