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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47 lines
1.6 KiB
47 lines
1.6 KiB
4 years ago
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import { hasPassiveEventSupport } from './env';
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import { isObject } from './inspect'; // --- Constants ---
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export var EVENT_OPTIONS_PASSIVE = {
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passive: true
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};
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export var EVENT_OPTIONS_NO_CAPTURE = {
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passive: true,
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capture: false
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}; // --- Utils ---
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// Normalize event options based on support of passive option
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// Exported only for testing purposes
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export var parseEventOptions = function parseEventOptions(options) {
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/* istanbul ignore else: can't test in JSDOM, as it supports passive */
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if (hasPassiveEventSupport) {
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return isObject(options) ? options : {
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capture: !!options || false
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};
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} else {
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// Need to translate to actual Boolean value
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return !!(isObject(options) ? options.capture : options);
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}
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}; // Attach an event listener to an element
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export var eventOn = function eventOn(el, evtName, handler, options) {
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if (el && el.addEventListener) {
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el.addEventListener(evtName, handler, parseEventOptions(options));
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}
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}; // Remove an event listener from an element
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export var eventOff = function eventOff(el, evtName, handler, options) {
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if (el && el.removeEventListener) {
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el.removeEventListener(evtName, handler, parseEventOptions(options));
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}
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}; // Utility method to add/remove a event listener based on first argument (boolean)
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// It passes all other arguments to the `eventOn()` or `eventOff` method
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export var eventOnOff = function eventOnOff(on) {
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var method = on ? eventOn : eventOff;
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for (var _len = arguments.length, args = new Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {
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args[_key - 1] = arguments[_key];
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}
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method.apply(void 0, args);
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};
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