StackGenVis: Alignment of Data, Algorithms, and Models for Stacking Ensemble Learning Using Performance Metrics
https://doi.org/10.1109/TVCG.2020.3030352
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Angelos Chatzimparmpas
e069030893
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3 years ago | |
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| example | 3 years ago | |
| test | 3 years ago | |
| .travis.yml | 3 years ago | |
| LICENSE | 3 years ago | |
| index.js | 3 years ago | |
| package.json | 3 years ago | |
| readme.markdown | 3 years ago | |
readme.markdown
defined
return the first argument that is !== undefined
Most of the time when I chain together ||s, I actually just want the first
item that is not undefined, not the first non-falsy item.
This module is like the defined-or (//) operator in perl 5.10+.
example
var defined = require('defined');
var opts = { y : false, w : 4 };
var x = defined(opts.x, opts.y, opts.w, 100);
console.log(x);
$ node example/defined.js
false
The return value is false because false is the first item that is
!== undefined.
methods
var defined = require('defined')
var x = defined(a, b, c...)
Return the first item in the argument list a, b, c... that is !== undefined.
If all the items are === undefined, return undefined.
install
With npm do:
npm install defined
license
MIT