95 lines
2.4 KiB
JavaScript
95 lines
2.4 KiB
JavaScript
/* eslint-disable max-classes-per-file */
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export function bytesToSize(bytes) {
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const sizes = ['Bytes', 'KB', 'MB', 'GB', 'TB'];
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if (bytes === 0) return 'n/a';
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const i = parseInt(Math.floor(Math.log(bytes) / Math.log(1024)), 10);
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if (i === 0) return `${bytes} ${sizes[i]}`;
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return `${(bytes / (1024 ** i)).toFixed(1)} ${sizes[i]}`;
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}
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export function diffMinutes(dt2, dt1) {
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let diff = (dt2.getTime() - dt1.getTime()) / 1000;
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diff /= 60;
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return Math.abs(Math.round(diff));
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}
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export function isInSameDay(dt2, dt1) {
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return (
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dt2.getFullYear() === dt1.getFullYear()
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&& dt2.getMonth() === dt1.getMonth()
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&& dt2.getDate() === dt1.getDate()
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);
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}
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export function getEventCords(ev) {
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const boxInfo = ev.target.getBoundingClientRect();
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return {
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x: boxInfo.x,
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y: boxInfo.y,
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detail: ev.detail,
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};
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}
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export function abbreviateNumber(number) {
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if (number > 99) return '99+';
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return number;
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}
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export class Debounce {
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constructor() {
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this.timeoutId = null;
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}
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/**
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* @param {function} func - callback function
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* @param {number} wait - wait in milliseconds to call func
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* @returns {func} debounceCallback - to pass arguments to func callback
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*/
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_(func, wait) {
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const that = this;
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return function debounceCallback(...args) {
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clearTimeout(that.timeoutId);
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that.timeoutId = setTimeout(() => {
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func.apply(this, args);
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that.timeoutId = null;
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}, wait);
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};
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}
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}
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export class Throttle {
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constructor() {
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this.timeoutId = null;
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}
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/**
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* @param {function} func - callback function
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* @param {number} wait - wait in milliseconds to call func
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* @returns {function} throttleCallback - to pass arguments to func callback
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*/
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_(func, wait) {
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const that = this;
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return function throttleCallback(...args) {
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if (that.timeoutId !== null) return;
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that.timeoutId = setTimeout(() => {
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func.apply(this, args);
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that.timeoutId = null;
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}, wait);
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};
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}
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}
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export function getUrlPrams(paramName) {
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const queryString = window.location.search;
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const urlParams = new URLSearchParams(queryString);
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return urlParams.get(paramName);
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}
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export function getScrollInfo(target) {
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const scroll = {};
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scroll.top = Math.round(target.scrollTop);
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scroll.height = Math.round(target.scrollHeight);
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scroll.viewHeight = Math.round(target.offsetHeight);
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scroll.isScrollable = scroll.height > scroll.viewHeight;
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return scroll;
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}
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