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Get average color of image via Javascript
...o the cross-origin restriction if you try to access image data on an image from another domain. Which is a bummer.
– user18015
Mar 4 '12 at 0:15
8
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In Gradle, how do I declare common dependencies in a single place?
...cyManagement> section of the parent POM, and reference that dependency from child modules without specifying the version or scope or whatever.
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Why is there no tuple comprehension in Python?
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Thats a nice tip from Raymond Hettinger. I would still say there is a use case for using the tuple constructor with a generator, such as unpacking another structure, perhaps larger, into a smaller one by iterating over the attrs that you are...
No == operator found while comparing structs in C++
... this earlier, but often structs/classes have some data members to exclude from comparison (e.g. counters, cached results, container capacity, last operation success/error code, cursors), as well as decisions to make about myriad things including but not limited to:
which fields to compare first, ...
What is the use of hashCode in Java?
...implementations like HashMap, HashTable, HashSet, etc.
The value received from hashCode() is used as the bucket number for storing elements of the set/map. This bucket number is the address of the element inside the set/map.
When you do contains() it will take the hash code of the element, then lo...
Check synchronously if file/directory exists in Node.js
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You can use fs.existsSync():
const fs = require("fs"); // Or `import fs from "fs";` with ESM
if (fs.existsSync(path)) {
// Do something
}
It was deprecated for several years, but no longer is. From the docs:
Note that fs.exists() is deprecated, but fs.existsSync() is not. (The
callbac...
Why is using 'eval' a bad practice?
...ram with some OS. Then someone makes a bash script that takes some numbers from a stock site and adds them using calc. boom?
– L̲̳o̲̳̳n̲̳̳g̲̳̳p̲̳o̲̳̳k̲̳̳e̲̳̳
Jul 4 '10 at 17:23
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How to generate random number in Bash?
...are not random. If you specify shuf -i 1-10 -n 10 you will get all numbers from 1 to 10 exactl one. If you specify -n 15 you will still get only those 10 numbers exactly once. That is really only shuffling, not generating random numbers.
– radlan
Apr 27 at 13:0...
Working with $scope.$emit and $scope.$on
How can I send my $scope object from one controller to another using .$emit and .$on methods?
12 Answers
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I want to remove double quotes from a String
...(str.length -1). substr expects 2 arguments, where the first is the offset from which the substring starts, the second is its length. Since we don't want the last char, anymore than we want the first, that length is str.length - 2. Easy-peazy.
Tips:
More on lookaround assertions can be found here
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