selimbat
/ Array.prototype.at.polyfill.js
Created
June 26, 2022 12:02
This is a polyfill for Array.prototype.at, that landed in the spec in 2021 and that are not yet implemented by all browsers
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| if (!Array.prototype.at) { | |
| Array.prototype.at = function (index) { | |
| if (!this.length) return undefined; | |
| let number = Number(index) || 0; // if NaN, affect 0 | |
| let intIndex = Math.sign(number) * Math.floor(Math.abs(number)); | |
| let relativeIndex = intIndex >= 0 ? intIndex : this.length + intIndex; | |
| if (relativeIndex < 0 || relativeIndex >= this.length) return undefined; | |
| return this[relativeIndex]; | |
| } | |
| } |
selimbat
/ persistentCamera.js
Last active
October 14, 2022 10:11
This is a quick setup to get a camera in Three.js to persist its position when the website hot-reloads
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| // When creating the camera | |
| const storedCamera = JSON.parse(localStorage.getItem('camera')); | |
| if (storedCamera) { | |
| camera.position.set( | |
| storedCamera.position.x, | |
| storedCamera.position.y, | |
| storedCamera.position.z, | |
| ); | |
| controls.target.set( | |
| storedCamera.target.x, |