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export function clamp(num, a, b) { return Math.max(Math.min(num, Math.max(a, b)), Math.min(a, b)); } export function capitalize(str) { return str.charAt(0).toUpperCase() + str.slice(1); } export function isStringOrNumber(val) { return ['string', 'number'].includes(typeof val); } export function secondToTime(second) { if (!second) return '00:00'; const add0 = (num) => (num < 10 ? `0${num}` : String(num)); const hour = Math.floor(second / 3600); const min = Math.floor((second - hour * 3600) / 60); const sec = Math.floor(second - hour * 3600 - min * 60); return (hour > 0 ? [hour, min, sec] : [min, sec]).map(add0).join(':'); } export function escape(str) { return str.replace( /[&<>'"]/g, (tag) => ({ '&': '&', '<': '<', '>': '>', "'": ''', '"': '"', })[tag] || tag, ); } export function unescape(str) { const map = { '&': '&', '<': '<', '>': '>', ''': "'", '"': '"', }; const reg = new RegExp(`(${Object.keys(map).join('|')})`, 'g'); return str.replace(reg, (tag) => map[tag] || tag); }