浣滆€咃細RahulSharma璇戣€咃細鍓嶇灏忔櫤鏉ユ簮锛歞ev鏈夋ⅵ鎯筹紝鏈夊共璐э紝寰俊鎼滅储銆愬ぇ鍗冧笘鐣屻€戝叧娉ㄨ繖涓礂纰楃洏鐨勬竻鏅ㄦ櫤鎱с€傛湰鏂囧凡鏀跺綍鍒癎itHubhttps://github.com/qq449245884/xiaozhi锛岄噷闈㈡湁瀹屾暣鐨勬祴璇曠珯鐐广€佽祫鏂欏拰鎴戠殑涓€绾垮巶鍟嗚璋堢郴鍒楁枃绔犮€傛渶杩戦潰璇曠殑涓€閬撻鏄嚦灏戝啓15涓暟缁勬柟娉曘€傛暟缁勬柟娉曢€氬父浣跨敤6-7銆傜獊鐒堕棿锛屾垜涓嶅緱涓嶄竴娆″啓15涓€傛垜杩樻槸鏈夌偣鍗′綇浜嗐€備粖澶╂暣鐞嗕竴娉紝浠ュ悗鍐嶅洖椤俱€?Array.map()map()鏂规硶涓哄師濮嬫暟缁勪腑鐨勬瘡涓厓绱犲垱寤轰竴涓柊鏁扮粍锛屽叾涓寘鍚竴娆℃彁渚涚殑鍑芥暟鐨勮繑鍥炲€笺€傚父閲忓垪琛?[馃槴,馃槴,馃槴,馃槴];鍒楄〃銆傚湴鍥?(鈿笍)=>馃榾);//[馃榾,馃榾,馃榾,馃榾]甯搁噺鍒楄〃=[1,2,3,4];鍒楄〃.map((el)=>el*2);//[2,4,6,8]Array.filter()filter()鏂规硶鍒涘缓涓€涓柊鏁扮粍锛屽叾涓寘鍚€氳繃鎻愪緵鐨勫嚱鏁板畬鎴愮殑娴嬭瘯鐨勬墍鏈夊厓绱犮€傚父閲忓垪琛?[馃榾,馃槴,馃榾,馃槴];list.filter((鈿笍)=>鈿笍===馃榾);//[馃榾,馃榾]//Codeconstlist=[1,2,3,4];list.filter((el)=>el%2===0);//[2,4]Array.reduce()reduce()鏂规硶瀵规暟缁勪腑鐨勬瘡涓厓绱犱緷娆℃墽琛屼綘鎻愪緵鐨勪竴涓簭鍒梤educer鍑芥暟锛宺educer鐨勬瘡娆¤繍琛岄兘浼氫紶鍏ュ墠闈㈠厓绱犵殑璁＄畻缁撴灉浣滀负鍙傛暟锛屾渶鍚庡皢缁撴灉姹囨€绘垚涓€涓崟涓€鐨勮繑鍥炲€笺€傚父閲忓垪琛?[馃榾,馃槴,馃榾,馃槴,馃お];list.reduce((猬滐笍,鈿笍)=>猬滐笍+鈿笍);//馃榾+馃槴+馃榾+馃槴+馃お//鎴栬€卌onstlist=[1,2,3,4,5];list.reduce((鎬昏,椤圭洰)=>鎬昏+椤圭洰,0);//15Array.reduceRight()reduceRight()鏂规硶鐨勪綔鐢ㄥ拰reduce()鏄竴鏍风殑锛屼絾鏄笉鍚岀殑鏄痳educeRight()鏄粠鏁扮粍鐨勬湯灏惧悜鍓嶇疮鍔犳暟缁勪腑鐨勬暟缁勯」銆傚父閲忓垪琛?[馃榾,馃槴,馃榾,馃槴,馃お];list.reduceRight((猬滐笍,鈿笍)=>猬滐笍+鈿笍);//馃お+馃槴+馃榾+馃槴+馃榾//Codeconst鍒楄〃=[1,2,3,4,5];list.reduceRight((鎬昏,椤圭洰)=>鎬昏+椤圭洰,0);//15Array.fill()fill()鏂规硶鐢ㄥ浐瀹氬€煎～鍏呬竴涓暟缁勶紝浠庤捣濮嬬储寮曞紑濮嬪埌缁撴潫绱㈠紩鍐呯殑鎵€鏈夊厓绱犮€備笉鍖呮嫭缁堟绱㈠紩銆俢onstlist=[馃榾,馃槴,馃榾,馃槴,馃お];list.fill(馃榾);//[馃榾,馃榾,馃榾,馃榾,馃榾]甯搁噺鍒楄〃=[1,2,3,4,5];鍒楄〃.濉厖锛?锛夛紱//[0,0,0,0,0]Array.find()find()鏂规硶杩斿洖鏁扮粍涓弧瓒虫彁渚涚殑娴嬭瘯鍑芥暟鐨勭涓€涓厓绱犵殑鍊笺€傚惁鍒欒繑鍥炴湭瀹氫箟銆傚父閲忓垪琛?[馃榾,馃槴,馃榾,馃槴,馃お];list.find((鈿笍)=>鈿笍===馃榾);//馃榾list.find((鈿笍)=>鈿笍===馃槤);//undefinedconst鍒楄〃=[1,2,3,4,5];鍒楄〃銆傛煡鎵撅紙锛坋l锛?>el===3锛夛紱//3鍒楄〃銆傛煡鎵撅紙锛坋l锛?>el===6锛夛紱//undefinedArray.indexOf()indexOf()鏂规硶杩斿洖缁欏畾鍏冪礌鍦ㄦ暟缁勪腑鐨勭涓€涓储寮曪紝濡傛灉涓嶅瓨鍦ㄥ垯杩斿洖-1銆俢onstlist=[馃榾,馃槴,馃榾,馃槴,馃お];list.indexOf(馃榾);//0list.indexOf(馃槨);//-1//Codeconstlist=[1,2,3,4,5];list.indexOf(3);//2list.indexOf(6);//-1Array.lastIndexOf()arr.lastIndexOf(searchElement[,fromIndex])lastIndexOf()鏂规硶杩斿洖鎸囧畾鍏冪礌锛堝嵆鏈夋晥鐨凧avaScript鍊兼垨鍙橀噺锛夋暟缁勪腑鏈€鍚庝竴涓厓绱犵殑绱㈠紩锛屾垨鑰?1濡傛灉瀹冧笉瀛樺湪銆備粠鏁扮粍鐨勫悗闈㈠線鍓嶇湅锛屼粠fromIndex寮€濮嬨€俢onstlist=[馃榾,馃槴,馃榾,馃槴,馃お];list.lastIndexOf(馃榾);//3list.lastIndexOf(馃榾,1);//0//Codeconstlist=[1,2,3,4,5];list.lastIndexOf(3);//2list.lastIndexOf(3,1);//-1Array.findIndex()findIndex()鏂规硶杩斿洖鏁扮粍涓弧瓒虫彁渚涚殑娴嬭瘯鍑芥暟鐨勭涓€涓厓绱犵殑绱㈠紩銆傚鏋滄病鏈夋壘鍒扮浉搴旂殑鍏冪礌锛屽垯杩斿洖-1銆俢onstlist=[馃榾,馃槴,馃榾,馃槴,馃お];list.findIndex((鈿笍)=>鈿笍===馃榾);//0//浣犲彲鑳藉湪鎯冲畠涓巂indexOf`鏈変綍涓嶅悓馃constarray=[5,12,8,130,44];array.findIndex((鍏冪礌)=>鍏冪礌>13);//3//ORconstarray=[{id:馃榾},{id:馃槴},{id:馃お}];array.findIndex((element)=>element.id===馃お);//2Array.includes()includes()鏂规硶鐢ㄤ簬鍒ゆ柇涓€涓暟缁勬槸鍚﹀寘鍚寚瀹氬€硷紝鏍规嵁鎯呭喌鍒ゆ柇锛屽鏋滃寘鍚垯杩斿洖true锛屽惁鍒欒繑鍥瀎alse銆俢onstlist=[馃榾,馃槴,馃榾,馃槴,馃お];list.includes(馃榾);//true//Codeconstlist=[1,2,3,4,5];list.includes(3);//truelist.includes(6);//falseArray.pop()pop()鏂规硶浠庢暟缁勪腑鍒犻櫎鏈€鍚庝竴涓厓绱犲苟杩斿洖璇ュ厓绱犵殑鍊笺€傛鏂规硶鏇存敼鏁扮粍鐨勯暱搴︺€俢onstlist=[馃榾,馃槴,馃榾,馃槴,馃お];list.pop();//馃お鍒楄〃锛?/[馃榾,馃槴,馃榾,馃槴]//Codeconstlist=[1,2,3,4,5];list.pop();//5鍒楄〃锛?/[1,2,3,4]Array.push()push()鏂规硶鍚戞暟缁勬湯灏炬坊鍔犱竴涓垨澶氫釜鍏冪礌锛屽苟杩斿洖鏂伴暱搴︿负鐨勬暟缁勩€俢onstlist=[馃榾,馃槴,馃榾,馃槴,馃お];list.push(馃槨);//5鍒楄〃锛?/[馃榾,馃槴,馃榾,馃槴,馃お,馃槨]//Codeconst鍒楄〃=[1,2,3,4,5];鍒楄〃.鎺ㄩ€侊紙6锛夛紱//6鍒楄〃锛?/[1,2,3,4,5,6]Array.shift()shift()鏂规硶鍒犻櫎绗竴涓厓绱犲苟杩斿洖璇ュ厓绱犵殑鍊笺€傛鏂规硶鏇存敼鏁扮粍鐨勯暱搴︺€俢onstlist=[馃榾,馃槴,馃榾,馃槴,馃お];list.shift();//馃榾鍒楄〃;//[馃槴,馃榾,馃槴,馃お]//Codeconstlist=[1,2,3,4,5];list.shift();//1鍒楄〃锛?/[2,3,4,5]Array.unshift()unshift()鏂规硶鍚戞暟缁勭殑寮€澶存坊鍔犱竴涓垨澶氫釜鍏冪礌骞惰繑鍥炴暟缁勭殑鏂伴暱搴︼紙璇ユ柟娉曚慨鏀逛簡鍘熷鏁扮粍锛夈€俢onstlist=[馃榾,馃槴,馃榾,馃槴,馃お];list.unshift(馃槨);//6鍒楄〃锛?/[馃槨,馃榾,馃槴,馃榾,馃槴,馃お]//Codeconst鍒楄〃=[1,2,3,4,5];鍒楄〃.unshift(0);//6鍒楄〃锛?/[0,1,2,3,4,5]Array.splice()splice()鏂规硶绉婚櫎鎴栨浛鎹㈢幇鏈夊厓绱犳垨鍦ㄥ師鍦版坊鍔犳柊鍏冪礌浠ヤ慨鏀规暟缁勶紝骞跺皢淇敼鍚庣殑鍐呭浣滀负鏁扮粍杩斿洖銆傛鏂规硶浼氭敼鍙樺師濮嬫暟缁勩€俢onstlist=[馃榾,馃槴,馃榾,馃槴,馃お];list.splice(1,2);//[馃榾,馃槴]鍒楄〃;//[馃榾,馃槴,馃お]//Codeconstlist=[1,2,3,4,5];list.splice(1,2);//[2,3]鍒楄〃锛?/[1,4,5]Array.slice()slice()鏂规硶杩斿洖涓€涓柊鐨勬暟缁勫璞★紝杩欎釜瀵硅薄鏄敱begin鍜宔nd锛堝寘鎷琤egin锛屼笉鍖呮嫭end锛夊喅瀹氱殑鍘熷鏁扮粍鐨勬祬鎷疯礉銆傚師鏁扮粍涓嶄細鏀瑰彉銆俢onstlist=[馃榾,馃槴,馃榾,馃槴,馃お];list.slice(1,3);//[馃槴,馃榾]鍒楄〃;//[馃榾,馃槴,馃榾,馃槴,馃お]//Codeconst鍒楄〃=[1,2,3,4,5];鍒楄〃銆傚垏鐗囷紙1銆?锛夛紱//[2,3]鍒楄〃锛?/[1,2,3,4,5]鏁扮粍銆俲oin()join()鏂规硶灏嗘暟缁勶紙鎴栫被鏁扮粍瀵硅薄锛夌殑鎵€鏈夊厓绱犺繛鎺ユ垚涓€涓瓧绗︿覆骞惰繑鍥炶瀛楃涓层€傚鏋滄暟缁勫彧鏈変竴椤癸紝鍒欒繑鍥炶椤规椂涓嶅甫鍒嗛殧绗︺€俢onstlist=[馃榾,馃槴,馃榾,馃槴,馃お];list.join('銆帮笍');//"馃榾銆帮笍馃槴銆帮笍馃榾銆帮笍馃槴銆帮笍馃お"//Codeconstlist=[1,2,3,4,5];list.join(',');//"1,2,3,4,5"Array.reverse()reverse()鏂规硶鍙嶈浆鏁扮粍涓厓绱犵殑浣嶇疆骞惰繑鍥炴暟缁勩€傛暟缁勭殑绗竴涓厓绱犳垚涓烘渶鍚庝竴涓厓绱狅紝鏁扮粍鐨勬渶鍚庝竴涓厓绱犳垚涓虹涓€涓厓绱犮€傛鏂规硶灏嗘洿鏀瑰師濮嬫暟缁勩€俢onstlist=[馃榾,馃槴,馃榾,馃槴,馃お];list.reverse();//[馃お,馃槴,馃榾,馃槴,馃榾]鍒楄〃锛?/[馃お,馃槴,馃榾,馃槴,馃榾]//Codeconstlist=[1,2,3,4,5];鍒楄〃.reverse();//[5,4,3,2,1]鍒楄〃锛?/[5,4,3,2,1]Array.sort()sort()鏂规硶浣跨敤灏卞湴绠楁硶瀵规暟缁勭殑鍏冪礌杩涜鎺掑簭骞惰繑鍥炴暟缁勩€傞粯璁ゆ帓搴忛『搴忔槸鍦ㄥ皢鍏冪礌杞崲涓哄瓧绗︿覆鐒跺悗姣旇緝瀹冧滑鐨刄TF-16浠ｇ爜鍗曞厓鍊煎簭鍒楁椂鏋勯€犵殑銆俢onstlist=[馃榾,馃槴,馃榾,馃槴,馃お];list.sort();//[馃榾,馃榾,馃槴,馃槴,馃お]//杩欐洿鏈夋剰涔夝煠攃onstarray=['D','B','A','C'];array.sort();//馃榾['A','B','C','D']//ORconstarray=[4,1,3,2,10];array.sort();//馃槯[1,10,2,3,4]array.sort((a,b)=>a-b);//馃榾[1,2,3,4,10]Array.some()some()鏂规硶娴嬭瘯鏁扮粍涓槸鍚﹁嚦灏戞湁1涓厓绱犻€氳繃鎻愪緵鐨勫嚱鏁版祴璇曘€傚畠杩斿洖涓€涓竷灏旂被鍨嬬殑鍊笺€傚父閲忓垪琛?[馃榾,馃槴,馃榾,馃槴,馃お];list.some((鈿笍)=>鈿笍===馃榾);//truelist.some((鈿笍)=>鈿笍===馃槨);//false//Codeconstlist=[1,2,3,4,5];list.some((el)=>el===3);//truelist.some((el)=>el===6);//falseArray.every()every()鏂规硶娴嬭瘯鏁扮粍涓殑鎵€鏈夊厓绱犳槸鍚﹂兘鍙互閫氳繃鎸囧畾鍑芥暟鐨勬祴璇曘€傚畠杩斿洖涓€涓竷灏斿€笺€傚父閲忓垪琛?[馃榾,馃槴,馃榾,馃槴,馃お];list.every((鈿笍)=>鈿笍===馃榾);//鍋囧父閲忓垪琛?[馃榾,馃榾,馃榾,馃榾,馃榾];鍒楄〃銆傛瘡涓紙锛堚毆锔忥級=>鈿笍===馃榾锛夛紱//true//Codeconstlist=[1,2,3,4,5];list.every((el)=>el===3);//falseconst鍒楄〃=[2,4,6,8,10];list.every((el)=>el%2===0);//trueArray.from()Array.from()鏂规硶涓虹被鏁扮粍鎴栧彲杩唬瀵硅薄鍒涘缓涓€涓柊鐨凙rray瀹炰緥鐨勬祬琛ㄥ壇鏈€俢onstlist=馃榾馃槴馃榾馃槴馃お;Array.from(list);//[馃榾,馃槴,馃榾,馃槴,馃お]constset=newSet(['馃榾','馃槴','馃榾','馃槴','馃お']);Array.from(set);//[馃榾,馃槴,馃お]constrange=(n)=>Array.from({length:n},(_,i)=>i+1);鎺у埗鍙版棩蹇楋紙鑼冨洿锛?0锛夛級锛?/[1,2,3,4,5,6,7,8,9,10]Array.of()Array.of()鏂规硶鍒涘缓涓€涓叿鏈夊彲鍙樻暟閲忓弬鏁扮殑鏂版暟缁勫疄渚嬶紝鏃犺鍙傛暟鐨勬暟閲忔垨绫诲瀷銆侫rray.of()鍜孉rray鏋勯€犲嚱鏁颁箣闂寸殑鍖哄埆鍦ㄤ簬瀵规暣鏁板弬鏁扮殑澶勭悊锛欰rray.of(7)鍒涘缓涓€涓寘鍚崟涓厓绱?鐨勬暟缁勶紝鑰孉rray(7)鍒涘缓涓€涓暱搴︿负7鐨勭┖鏁扮粍锛堟敞鎰忥細this鎸囨湁7涓┖浣嶇殑鏁扮粍锛坋mpty锛夛紝涓嶆槸7涓猽ndefined缁勬垚鐨勬暟缁勩€傛暟缁勶紙7锛夛紱//[7]Array.of(1,2,3);//[1,2,3]鏁扮粍(7);//[,,,,,,]鏁扮粍(1,2,3);//[1,2,3]Array.isArray()Array.isArray()鐢ㄤ簬鍒ゆ柇浼犲叆鐨勫€兼槸鍚︿负Array銆侫rray.isArray([馃榾,馃槴,馃榾,馃槴,馃お]);//trueArray.isArray(馃お);//false//CodeArray.isArray([1,2,3,4,5]);//trueArray.isArray(5);//falseArray.at()at()鏂规硶鎺ュ彈涓€涓暣鏁板€煎苟杩斿洖璇ョ储寮曞鐨勯」鐩紝鍏佽姝ｆ暟鍜岃礋鏁般€傝礋鏁存暟浠庢暟缁勪腑鐨勬渶鍚庝竴椤瑰紑濮嬪€掓暟銆俢onstlist=[馃榾,馃槴,馃榾,馃槴,馃お];list.at(1);//馃槴//浠庢渶鍚庝竴涓煠攍ist.at(-1)杩斿洖锛?/馃おlist.at(-2);//馃槴//Codeconst鍒楄〃=[1,2,3,4,5];鍒楄〃锛?锛夛紱//2list.at(-1);//5list.at(-2);//4Array.copyWithin()arr.copyWithin(target[,start[,end]])copyWithin()鏂规硶娴呮嫹璐濅竴涓暟缁勭殑涓€閮ㄥ垎鍒板悓涓€涓暟缁勭殑鍙︿竴涓綅缃苟杩斿洖锛屼笉鏀瑰彉鍘熸暟缁勭殑闀垮害.甯搁噺鍒楄〃=[馃榾,馃槴,馃榾,馃槴,馃お];list.copyWithin(1,3);//[馃榾,馃榾,馃お,馃槴,馃お]甯搁噺鍒楄〃=[馃榾,馃槴,馃榾,馃槴,馃お];list.copyWithin(0,3,4);//[馃槴,馃槴,馃榾,馃槴,馃お]//Codeconstlist=[1,2,3,4,5];list.copyWithin(0,3,4);//[4,2,3,4,5]涓嶆槑鐧界殑鍙互鐪婱DN浠嬬粛锛歨ttps://developer.mozilla.org...Array.flat()varnewArray=arr.flat([depth])//depthOptional:鎸囧畾鎻愬彇宓屽鏁扮粍鐨勭粨鏋勬繁搴︼紝榛樿鍊间负1銆俧lat()鏂规硶浼氭寜鐓ф寚瀹氱殑娣卞害閫掑綊閬嶅巻鏁扮粍锛屽皢鎵€鏈夊厓绱犱笌閬嶅巻瀛愭暟缁勪腑鐨勫厓绱犺繑鍥炰竴涓柊鏁扮粍銆俢onstlist=[馃榾,馃槴,[馃榾,馃槴,馃お]];list.flat(Infinity);//[馃榾,馃槴,馃榾,馃槴,馃お]//Codeconstlist=[1,2,[3,4,[5,6]]];list.flat(Infinity);//[1,2,3,4,5,6]Array.flatMap()flatMap()鏂规硶棣栧厛浣跨敤鏄犲皠鍑芥暟鏄犲皠姣忎釜鍏冪礌锛岀劧鍚庡皢缁撴灉鍘嬬缉鍒颁竴涓柊鏁扮粍涓€傚畠鍑犱箮涓庨檮鍔犲埌娣卞害涓?鐨勫钩闈㈢殑鍦板浘鐩稿悓锛屼絾鏄綋缁勫悎鍒颁竴涓柟娉曚腑鏃讹紝flatMap閫氬父浼氱◢寰珮鏁堜竴浜涖€俢onstlist=[馃榾,馃槴,[馃榾,馃槴,馃お]];list.flatMap((鈿笍)=>[鈿笍,鈿笍+鈿笍]);//[馃榾,馃榾馃榾,馃槴,馃槴馃槴,馃榾,馃榾馃榾,馃槴,馃槴馃槴,馃お,馃お馃お]//Codeconstlist=[1,2,3];list.flatMap((el)=>[el,el*el]);//[1,1,2,4,3,9]浠ｇ爜閮ㄧ讲鍚庡彲鑳藉嚭鐜扮殑bug锛屾棤娉曞疄鏃惰幏鐭ャ€備箣鍚庝负浜嗚В鍐宠繖浜沚ug锛岃姳璐逛簡澶ч噺鐨勬椂闂村湪鏃ュ織璋冭瘯涓娿€傞『渚挎帹鑽愪竴涓ソ鐢ㄧ殑BUG鐩戞帶宸ュ叿Fundebug銆傚師鏂囷細https://dev.to/devmitra/28-j...浜ゆ祦鏈夋ⅵ鎯筹紝鏈夊共璐э紝寰俊鎼滅储銆愬ぇ鎷涜蛋鍚戜笘鐣屻€戝叧娉ㄨ繖浣嶆棭鏈熻繕鍦ㄦ礂纰楃殑娲楃鏅烘収鏃╂櫒銆傛湰鏂嘒itHubhttps://github.com/qq44924588...宸叉敹褰曪紝鏈夊畬鏁寸殑娴嬭瘯绔欑偣銆佽祫鏂欏拰鎴戠殑涓€绾垮巶鍟嗚璋堢郴鍒楁枃绔犮€?/p>
