鏂囨湰閫熻鎶€宸у綋鍚屾椂澹版槑澶氫釜鍙橀噺鏃讹紝鍙互缂╃煭涓轰竴琛?/Longhandletx;lety=20;//Shorthandletx,y=20;澶嶅埗浠ｇ爜锛屼娇鐢ㄨВ鏋勮祴鍊肩粰澶氫釜鍙橀噺鍚屾椂瀛樺湪//Longhandleta,b,c;a=5;b=8;c=12;//Shorthandlet[a,b,c]=[5,8,12];澶嶅埗浠ｇ爜骞朵娇鐢ㄤ笁鍏冭繍绠楃绠€鍖杋felse//Longhandletmarks=26;璁╃粨鏋滐紱濡傛灉锛堝垎鏁?=30锛墈缁撴灉='閫氳繃';}else{缁撴灉='澶辫触';}//绠€鍐檒etresult=marks>=30?'閫氳繃':'澶辫触';澶嶅埗浠ｇ爜浣跨敤||杩愮畻绗︿负鍙橀噺鍒嗛厤榛樿鍊笺€倈|鐨勭簿楂撹繍绠楃灏辨槸鍒╃敤浜唡|鐨勭壒鎬ф搷浣滃憳銆傚綋鍓嶉潰琛ㄨ揪寮忕殑缁撴灉鍙樻垚甯冨皵鍊糵alse鏃讹紝璇ュ€间负鍚庨潰琛ㄨ揪寮忕殑缁撴灉//LonghandletimagePath;letpath=getImagePath();if(path!==null&&path!==undefined&&path!==''){imagePath=path;}else{imagePath='default.jpg';}//ShorthandletimagePath=getImagePath()||'榛樿.jpg';澶嶅埗浠ｇ爜浣跨敤&&杩愮畻绗︾畝鍖杋f璇彞渚嬪锛屽鏋滀竴涓嚱鏁板彧鍦ㄦ煇涓潯浠朵负鐪熸椂鎵嶈璋冪敤锛屽垯鍙互灏嗗叾缂╃煭//Longhandif(isLoggedin){goToHomepage();}//ShorthandisLoggedin&&goToHomepage();澶嶅埗浠ｇ爜浣跨敤瑙ｆ瀯浜ゆ崲涓や釜鍙橀噺鐨勫€糽etx='Hello',y=55;//Longhandconsttemp=x;x=y;y=temp;//Shorthand[x,y]=[y,x];澶嶅埗浠ｇ爜搴旂敤浜庣澶村嚱鏁颁互绠€鍖栧嚱鏁?/Longhandfunctionadd(num1,num2){returnnum1+num2;}//绠€鍐檆onstadd=(num1,num2)=>num1+num2;澶嶅埗浠ｇ爜闇€瑕佹敞鎰忕澶村嚱鏁板拰鏅€氬嚱鏁扮殑鍖哄埆浣跨敤瀛楃涓叉ā鏉跨畝鍖栦唬鐮佷娇鐢ㄦā鏉垮瓧绗︿覆浠ｆ浛鍘熷瀛楃涓叉嫾鎺?/Longhandconsole.log('Yougotamissedcallfrom'+number+'at'+time);//Shorthandconsole.log(浣犲湪${time}鎺ュ埌鏉ヨ嚜${number}鐨勬湭鎺ョ數璇?;澶嶅埗浠ｇ爜澶氳瀛楃涓蹭篃鍙互浣跨敤瀛楃涓叉ā鏉胯繘琛岀畝鍖?/Longhandconsole.log('JavaScript锛屽父绠€绉颁负JS锛屾槸涓€绉峔n'+'绗﹀悎\n'+'ECMAScript瑙勮寖鐨勭紪绋嬭瑷€銆侸avaScript鏄珮-level,\n'+'甯稿嵆鏃剁紪璇戯紝澶氳寖寮忋€?);//Shorthandconsole.log(`JavaScript锛屽父绠€绉颁负JS锛屾槸涓€绉嶇鍚圗CMAScript瑙勮寖鐨勭紪绋嬭瑷€銆侸avaScript鏄珮绾х殑锛岄€氬父鏄嵆鏃剁紪璇戠殑锛屽苟涓旀槸澶氳寖寮忕殑銆俙锛夛紱澶嶅埗浠ｇ爜瀵逛簬澶氬€煎尮閰嶏紝鍙互灏嗘墍鏈夌殑鍊兼斁鍦ㄤ竴涓暟缁勪腑锛屼娇鐢ㄦ暟缁勭殑鏂瑰紡绠€鍐?/Longhandif(value===1||value==='one'||value===2||value==='two'){//鎵ц涓€浜涗唬鐮亇//绠€鍐?if([1,'one',2,'two'].indexOf(value)>=0){//鎵ц涓€浜涗唬鐮亇//绠€鍐?if([1,'one',2,'two'].includes(value)){//鎵ц涓€浜涗唬鐮亇澶嶅埗浠ｇ爜浣跨敤ES6瀵硅薄鐨勭畝娲佽娉曘€傛瘮濡傚綋灞炴€у悕鍜屽彉閲忓悕鐩稿悓鏃讹紝鍙互鐩存帴绠€鍐欎负aletfirstname='Amitav';letlastname='Mishra';//Longhandletobj={firstname:firstname,lastname:lastname};//Shorthandletobj={firstname,lastname};澶嶅埗浠ｇ爜浣跨敤涓€鍏冭繍绠楃灏嗗瓧绗︿覆绠€鍖栦负鏁板瓧//Longhandlettotal=parseInt('453');letaverage=parseFloat('42.6');//Shorthandlettotal=+'453';letaverage=+'42.6';澶嶅埗浠ｇ爜浣跨敤repeat()鏂规硶绠€鍖栭噸澶嶄竴涓瓧绗︿覆//Longhandletstr='';for(leti=0;i<5;i++){str+='浣犲ソ';}console.log(str);//HelloHelloHelloHelloHello//Shorthand'Hello'.repeat(5);//鎴戞兂瀵逛綘璇?00閬嶅涓嶈捣锛?瀵逛笉璧穃n'.repeat(100);澶嶅埗浠ｇ爜浣跨敤鍙屾槦鍙蜂唬鏇縈ath.pow()//Longhandconstpower=Math.pow(4,3);//64//绠€鍐檆onstpower=4**3;//64閲嶅浠ｇ爜浣跨敤鍙屾尝娴彿杩愮畻绗︼紙~~锛変唬鏇縈ath.floor()//Longhandconstfloor=Math.floor(6.8);//6//绠€鍐檆onstfloor=~~6.8;//6闇€瑕侀噸澶嶄唬鐮佹敞鎰弤~鍙€傜敤浜庡皬浜?147483647鐨勬暟宸у浣跨敤灞曞紑杩愮畻绗?...)绠€鍖栦唬鐮佺畝鍖栨暟缁勫悎骞秎etarr1=[20,30];//闀挎焺arr2=arr1.杩炴帴([60,80]);//[20,30,60,80]//绠€鍐檃rr2=[...arr1,60,80];//[20,30,60,80]copy鍗曞眰瀵硅薄鐨勪唬鐮佹嫹璐漧etobj={x:20,y:{z:30}};//LonghandconstmakeDeepClone=(obj)=>{letnewObject={};Object.keys(obj).map(key=>{if(typeofobj[key]==='object'){newObject[key]=makeDeepClone(obj[key]);}else{newObject[key]=obj[key];}});returnnewObject;}constcloneObj=makeDeepClone(obj);//绠€鍐檆onstcloneObj=JSON.parse(JSON.stringify(obj));//鍗曠骇objectlet鐨勭畝鍐檕bj={x:20,y:'浣犲ソ'};constcloneObj={...obj};澶嶅埗浠ｇ爜浠ユ煡鎵炬暟缁勪腑鐨勬渶澶у€煎拰鏈€灏忓€?/Shorthandconstarr=[2,8,15,4];Math.max(...arr);//15Math.min(...arr);//2澶嶅埗浠ｇ爜浣跨敤forin鍜宖orof鏉ョ畝鍖栧父瑙佺殑for寰幆letarr=[10,20,30,40];//Longhandfor(leti=0;i
