馃憢鏈枃鏁寸悊浜嗕竴浜涘疄鐢ㄧ殑JavaScript鍗曡锛屽緢鏈夌敤~~鑾峰彇娴忚鍣╟ookie鐨勫€间娇鐢╠ocument.cookie姹俢ookie鍊糲onstcookie=name=>`;${document.cookie}`.split(`;${name}=`).pop().split(';').shift();cookie('_ga');//Result:"GA1.2.1929736587.1601974046"ColorRGBtohexadecimalconstrgbToHex=(r,g,b)=>"#"+((1<<24)+(r<<16)+(g<<8)+b).toString(16).slice(1);rgbToHex(0,51,255);//Result:#0033ffCopytoclipboard浣跨敤navigator.clipboard.writeText锛屽緢瀹规槗灏嗘枃鏈鍒跺埌鍓创鏉緽oard涔嬪墠浣跨敤PermissionsAPI鑾峰彇鈥滃壀璐存澘鍐欏叆鈥濇潈闄愩€備絾鏄紝纭垏鐨勮姹傚洜娴忚鍣ㄨ€屽紓锛屽洜涓鸿繖鏄竴涓柊鐨凙PI銆傛湁鍏宠缁嗕俊鎭紝璇峰弬闃呭吋瀹规€ц〃鍜屽壀璐存澘涓殑鍓创鏉垮彲鐢ㄦ€с€俢onstcopyToClipboard=(text)=>navigator.clipboard.writeText(text);copyToClipboard("浣犲ソ涓栫晫");妫€鏌ユ棩鏈熸槸鍚︽湁鏁堜娇鐢ㄤ互涓嬩唬鐮佹妫€鏌ョ粰瀹氭棩鏈熸槸鍚︽湁鏁堛€俢onstisDateValid=(...val)=>!Number.isNaN(newDate(...val).valueOf());isDateValid("December17,199503:24:00");//缁撴灉锛歵rue鎵惧埌鏃ユ湡钀藉湪涓€骞翠腑鐨勫摢涓€澶ヽonstdayOfYear=(date)=>Math.floor((date-newDate(date.getFullYear(),0,0))/1000/60/60/24);dayOfYear(newDate());//Result:272鑻辨枃瀛楃涓插ぇ鍐橨avascript娌℃湁鍐呯疆澶у啓鍑芥暟锛屾墍浠ユ垜浠彲浠ヤ娇鐢ㄤ笅闈㈢殑浠ｇ爜銆俢onstcapitalize=str=>str.charAt(0).toUpperCase()+str.slice(1)capitalize("followformore")//缁撴灉锛歠ollowformore璁＄畻2涓棩鏈熺浉宸灏戝ぉconstdayDif=(date1,date2)=>Math.ceil(Math.abs(date1.getTime()-date2.getTime())/86400000)dayDif(newDate("2020-10-21"),newDate("2021-10-22"))//Result:366ClearAllCookies閫氳繃document.cookie璁块棶cookies锛屾竻闄ookies锛屽彲浠ヨ交鏉炬竻闄や竴涓綉椤典腑瀛樺偍鐨勬墍鏈塩ookies銆俢onstclearCookies=document.cookie.split(';').forEach(cookie=>document.cookie=cookie.replace(/^+/,'').replace(/=.*/,`=;expires=${newDate(0).toUTCString()};path=/`));鐢熸垚闅忔満鐨勫崄鍏繘鍒堕鑹叉偍鍙互浣跨敤Math.random鍜宲adEnd灞炴€х敓鎴愰殢鏈虹殑鍗佸叚杩涘埗棰滆壊銆俢onstrandomHex=()=>`#${Math.floor(Math.random()*0xffffff).toString(16).padEnd(6,"0")}`;console.log(randomHex());//缁撴灉锛?92b008鏁扮粍鍘婚噸鍙互浣跨敤JavaScript涓殑Set杞绘澗鍒犻櫎閲嶅椤筩onstremoveDuplicates=(arr)=>[...newSet(arr)];console.log(removeDuplicates([1,2,3,3,4,4,5,5,6]));//Result:[1,2,3,4,5,6]浠嶶RL鑾峰彇鏌ヨ鍙傛暟閫氳繃浼犻€抴indow.location鎴栧師濮婾RLgoole.com锛焥earch=easy&page=3浠巙rlconstgetParameters=(URL)=>{URL=JSON.parse('{"'+decodeURI(URL.split("?")[1]).replace(/"/g,'\\"').replace(/&/g,'","').replace(/=/g,'":"')+'"}');returnJSON.stringify(URL);};getParameters(window.location);//缁撴灉锛歿search:"easy",page:3}鎴栬€呮洿绠€鍗曪細Object.fromEntries(newURLSearchParams(window.location.search))//Result:{search:"easy",page:3}鏃堕棿澶勭悊鎴戜滑鍙互浠our::minutes::seconds鏍煎紡璁板綍缁欏畾鏃ユ湡鐨勬椂闂淬€俢onsttimeFromDate=date=>date.toTimeString().slice(0,8);console.log(timeFromDate(鏂版棩鏈?2021,0,10,17,30,0)));//缁撴灉:"17:30:00"妫€鏌ユ暟瀛楁槸濂囨暟杩樻槸鍋舵暟constisEven=num=>num%2===0;鎺у埗鍙版棩蹇楋紙isEven锛?锛夛級锛?/Result:True浣跨敤鎸変綅杩愮畻constisEven=num=>(num&1)===0;console.log(isEven(1));//Result:True姹傛暟鐨勫钩鍧囧€间娇鐢╮educe鏂规硶姹傚涓暟瀛椾箣闂寸殑骞冲潎鍊笺€俢onstaverage=(...args)=>args.reduce((a,b)=>a+b)/args.length;average(1,2,3,4);//缁撴灉锛?.5鍥炲埌椤堕儴鎮ㄥ彲浠ヤ娇鐢╳indow.scrollTo(0,0)鏂规硶鑷姩婊氬姩鍒伴《閮ㄣ€傚皢x鍜寉閮借缃负0銆俢onstgoToTop=()=>window.scrollTo(0,0);杞埌椤堕儴锛堬級锛涚炕杞瓧绗︿覆鍙互浣跨敤split銆乺everse鍜宩oin鏂规硶杞绘澗鍦板弽杞瓧绗︿覆銆俢onstreverse=str=>str.split('').reverse().join('');鍙嶅悜锛?浣犲ソ涓栫晫'锛?//Result:'dlrowolleh'Checkifthearrayisempty涓€琛屼唬鐮佹鏌ユ暟缁勫鏋滀负绌猴紝鍒欒繑鍥瀟rue鎴杅alseconstisNotEmpty=arr=>Array.isArray(arr)&&arr.length>0;isNotEmpty([1,2,3]);//Result:true鑾峰彇鐢ㄦ埛閫夋嫨鐨勬枃鏈娇鐢ㄥ唴缃殑getSelection灞炴€ц幏鍙栫敤鎴烽€夋嫨鐨勬枃鏈€俢onstgetSelectedText=()=>window.getSelection().toString();getSelectedText();鎵撲贡鏁扮粍鎮ㄥ彲浠ヤ娇鐢ㄦ帓搴忓拰闅忔満鏂规硶鎵撲贡鏁扮粍constshuffleArray=(arr)=>arr.sort(()=>0.5-Math.random());console.log(shuffleArray([1,2,3,4]));//缁撴灉锛歔1,4,3,2]瑕佹鏌ョ敤鎴风殑璁惧鏄惁澶勪簬榛戞殫妯″紡锛岃浣跨敤浠ヤ笅浠ｇ爜妫€鏌ョ敤鎴风殑璁惧鏄惁澶勪簬娣辫壊妯″紡銆俢onstisDarkMode=window.matchMedia&&window.matchMedia('(prefers-color-scheme:dark)').matchesconsole.log(isDarkMode)//缁撴灉锛氱湡鎴栧亣
