umd package can provide es5?

[deyihu]

Is your feature request related to a problem? Please describe.
The current UMD package is ES6. If my code is Es5, I can't inherit three related classes

var __extends = (this && this.__extends) || (function () {
    var extendStatics = function (d, b) {
        extendStatics = Object.setPrototypeOf ||
            ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
        return extendStatics(d, b);
    };
    return function (d, b) {
        extendStatics(d, b);
        function __() { this.constructor = d; }
        d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
    };
})();
/**
 * @author WestLangley / http://github.com/WestLangley
 *
 */
import * as THREE from 'three';
import LineSegmentsGeometry from './LineSegmentsGeometry';
import { addAttribute } from '../ThreeAdaptUtil';
import LineMaterial from './LineMaterial';
var LineSegments2 = /** @class */ (function (_super) {
    __extends(LineSegments2, _super);
    function LineSegments2(geometry, material) {
        var _this = _super.call(this, geometry, material) || this;
        _this.isLineSegments2 = true;
        _this.type = 'LineSegments2';
        _this.geometry = geometry !== undefined ? geometry : new LineSegmentsGeometry();
        _this.material = material !== undefined ? material : new LineMaterial({ color: Math.random() * 0xffffff });
        return _this;
    }
    LineSegments2.prototype.computeLineDistances = function () {
        var start = new THREE.Vector3();
        var end = new THREE.Vector3();
        var geometry = this.geometry;
        var instanceStart = geometry.attributes.instanceStart;
        var instanceEnd = geometry.attributes.instanceEnd;
        var lineDistances = new Float32Array(2 * instanceStart.data.count);
        for (var i = 0, j = 0, l = instanceStart.data.count; i < l; i++, j += 2) {
            start.fromBufferAttribute(instanceStart, i);
            end.fromBufferAttribute(instanceEnd, i);
            lineDistances[j] = (j === 0) ? 0 : lineDistances[j - 1];
            lineDistances[j + 1] = lineDistances[j] + start.distanceTo(end);
        }
        var instanceDistanceBuffer = new THREE.InstancedInterleavedBuffer(lineDistances, 2, 1); // d0, d1
        addAttribute(geometry, 'instanceDistanceStart', new THREE.InterleavedBufferAttribute(instanceDistanceBuffer, 1, 0));
        addAttribute(geometry, 'instanceDistanceEnd', new THREE.InterleavedBufferAttribute(instanceDistanceBuffer, 1, 1));
        // geometry.addAttribute('instanceDistanceStart', new THREE.InterleavedBufferAttribute(instanceDistanceBuffer, 1, 0)); // d0
        // geometry.addAttribute('instanceDistanceEnd', new THREE.InterleavedBufferAttribute(instanceDistanceBuffer, 1, 1)); // d1
        return this;
    };
    // eslint-disable-next-line no-unused-vars
    LineSegments2.prototype.copy = function (source) {
        // todo
        return this;
    };
    return LineSegments2;
}(THREE.Mesh));
;
// LineSegments2.prototype = Object.assign(Object.create(THREE.Mesh.prototype), {
//     constructor: LineSegments2,
//     isLineSegments2: true,
// });
export default LineSegments2;
//# sourceMappingURL=LineSegments2.js.map

https://cdn.jsdelivr.net/npm/three@0.129.0/build/three.js

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umd package Use Es5 version， The ESM package can use ES6

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[mrdoob]

If you need a ES5 build you can change this line to "targets": ">0.25%" and run npm run build.

[deyihu]

If you need a ES5 build you can change this line to "targets": ">0.25%" and run npm run build.

Yes, I can compile it myself, but CDN will not be used because my NPM package is Es5

[mrdoob]

Sorry, we deprecated ES5 support. You'll have to update your code or continue using a previous version.