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How can I inspect disappearing element in a browser?
...eak on... > Subtree Modifications." This will throw a debugger pause before the element disappears, which will allow you to interact with the element in a paused state.
Update Oct 22 2019: with the release of v. 70, it looks like FireFox finally supports this kind of debugging 2 3:
Update Sep 1...
Why is using “for…in” for array iteration a bad idea?
I've been told not to use for...in with arrays in JavaScript. Why not?
27 Answers
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remove_if equivalent for std::map
...ements from map based on particular condition. How do I do it using STL algorithms?
13 Answers
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How to call methods dynamically based on their name? [duplicate]
...all a method dynamically when its name is contained in a string variable? For example:
5 Answers
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How to install plugins to Sublime Text 2 editor?
How to install plugins to the Sublime Text editor?
8 Answers
8
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Null coalescing in powershell
Is there a null coalescing operator in powershell?
10 Answers
10
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What's the difference between the Dependency Injection and Service Locator patterns?
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The difference may seem slight, but even with the ServiceLocator, the class is still responsible for creating its dependencies. It just uses the service locator to do it. With DI, the class is given its dependencies. It neither knows, nor cares where they come from. One important re...
How do CSS triangles work?
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CSS Triangles: A Tragedy in Five Acts
As alex said, borders of equal width butt up against each other at 45 degree angles:
When you have no top border, it looks like this:
Then you give it a width of 0...
...and a height of 0...
...and finally, you make the two side...
What is the best way to get the count/length/size of an iterator?
Is there a "computationally" quick way to get the count of an iterator?
9 Answers
9
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Javascript reduce() on Object
...es(add).reduce((t, {value}) => t + value, 0)
console.log(total) // 6
or simply:
const add = {
a: 1,
b: 2,
c: 3
}
const total = Object.values(add).reduce((t, n) => t + n)
console.log(total) // 6
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