馃コ娆㈣繋鏈夊叴瓒ｇ殑鏈嬪弸涓€璧锋潵鍋氱偣鏈夋剰涔夌殑浜嬶紒鎴戝彂璧蜂簡涓€涓瘡鍛ㄧ炕璇戦」鐩€備粨搴撳湴鍧€鍜岃闂湴鍧€杩樺緢缂哄織鍚岄亾鍚堢殑灏忎紮浼淬€傝繖绾补鏄釜浜哄叴瓒ｃ€傚綋鐒讹紝涔熸湁鍔╀簬鎻愰珮鑻辫鍜屽墠绔妧鑳姐€傝姹傦細鑻辫涓嶈兘宸殑绂昏氨锛実ithub绮鹃€氾紝鏈夋瘏鍔涳紝璋﹁櫄锛屽仛浜嬫湁璐ｄ换鎰熴€傛兂鍙備笌鐨勬湅鍙嬪彲浠ョ淇x锛屾垨鑰呯粰浠撳簱鍙慽ssue娑堟伅銆傛垜鐨勫崥瀹㈣繕鏈夊叿浣撶殑涓汉鑱旂郴鏂瑰紡锛歞aodaolee.cn閫昏緫璧嬪€艰繍绠楃(&&=||=??=)閫昏緫璧嬪€艰繍绠楃馃摉銆?/鎴栫瓑浜巟||=y;x||(x=y);//鍜岀瓑浜巟&&=y;x&&(x=y);//闆跺悎骞秞??=y;x?锛?x=y);constupdateID=user=>{//鍙互杩欐牱鍐檌f(!user.id)user.id=1//orthisuser.id=user.id||1//鎴栬€呬娇鐢ㄩ€昏緫璧嬪€艰繍绠楃user.id||=1}functionsetOpts(opts){opts.cat??='meow'opts.dog??='bow';}setOpts({cat:'meow'})numberseparator鍦ㄦ暟瀛楃粍鍚堜箣闂村垝鍒嗮煋?1_000_000_000//鍟婏紝鍗佷嚎101_475_938.38//杩欐槸寰堝鍗佷嚎letfee=123_00;//$123璁╂墜缁垂=12_300;//$12,300璁╅噾棰?12345_00;//12,345璁╂暟閲?123_4500;//123.45璁╂暟閲?1_234_500;//1,234,5000.000_001//11e10_000鐧句竾鍒嗕箣涓€//10^100000xA0_B0_C0;Promise.any鍜岄敊璇敹闆哖romise.any+閿欒鏀堕泦馃摉.Promise.any([fetch('https://v8.dev/').then(()=>'home'),fetch('https://v8.dev/blog').then(()=>'blog'),fetch('https://v8.dev/docs').then(()=>'docs')]).then((first)=>{//浠讳綍鎵胯閮借灞ヨconsole.log(first);//鈫?home'}).catch((error)=>{//鎵€鏈夋壙璇洪兘琚嫆缁漜onsole.log(error);});String.prototype.replaceAll鏇挎崲鎵€鏈夝煋?//String.prototype.replaceAll(searchValue,replaceValue)'x'.replace('','_');//鈫?_x''xxx'.replace(/(?:)/g,'_');//鈫?_x_x_x_''xxx'.replaceAll('','_');//鈫?_x_x_x_'WeakRefs鍜孎inalizationRegistry瀵硅薄WeakRefs鍜孎inalizationRegistry馃摉lettarget={};letwr=newWeakRef(target);//wr鍜宼arget涓嶄竴鏍凤紝wr鏄急寮曠敤//鏂板缓registryconstregistry=newFinalizationRegistry(heldValue=>{//....});registry.register(myObject,"somevalue",myObject);//杩涜涓€浜涢€昏緫澶勭悊鍚庯紝濡傛灉涓嶅啀浣跨敤`myObject`锛屽彲浠ヨВ缁憆egistry.unregister(myObject);鍘熸潵鐨?/p>
