很抱歉，我的问题听起来很傻，但是我是编码和尝试学习javascript的新手。在edabit的一项练习中，我应该将十进制转换为二进制。这是我编写的代码，但未产生所需的输出。我在哪里在代码中出错？
function binary(decimal) {
var arr = [];
var remainderX;
while (decimal > 0) {
remainderX = decimal % 2;
decimal = decimal / 2;
arr.unshift(remainderX);
}
return arr.join('');
}
这是执行代码时出现的错误。
FAILED: Expected: '1100100', instead got: '5e-3241e-3231.5e-3233e-3236e-3231.24e-3222.47e-3224.94e-3229.9e-3221.976e-3213.953e-3217.905e-3211.581e-3203.162e-3206.324e-3201.2648e-3192.5296e-3195.05923e-3191.011846e-3182.023693e-3184.047386e-3188.09477e-3181.6189543e-3173.2379086e-3176.475817e-3171.29516345e-3162.5903269e-3165.1806538e-3161.036130757e-3152.072261515e-3154.14452303e-3158.28904606e-3151.6578092117e-3143.3156184234e-3146.631236847e-3141.32624736935e-3132.6524947387e-3135.3049894774e-3131.060997895483e-3122.121995790965e-3124.24399158193e-3128.48798316386e-3121.697596632772e-3113.3951932655444e-3116.790386531089e-3111.35807730621777e-3102.71615461243555e-3105.4323092248711e-3101.08646184497422e-3092.17292368994844e-3094.34584737989688e-3098.691694759793755e-3091.738338951958751e-3083.476677903917502e-3086.953355807835004e-3081.3906711615670009e-3072.7813423231340017e-3075.5626846462680035e-3071.1125369292536007e-3062.2250738585072014e-3064.450147717014403e-3068.900295434028806e-3061.780059086805761e-3053.560118173611522e-3057.120236347223044e-3051.4240472694446089e-3042.8480945388892178e-3045.6961890777784355e-3041.1392378155556871e-3032.2784756311113742e-3034.5569512622227484e-3039.113902524445497e-3031.8227805048890994e-3023.645561009778199e-3027.291122019556397e-3021.4582244039112795e-3012.916448807822559e-3015.832897615645118e-3011.1665795231290236e-3002.3331590462580472e-3004.6663180925160944e-3009.332636185032189e-3001.8665272370064378e-2993.7330544740128755e-2997.466108948025751e-2991.4932217896051502e-2982.9864435792103004e-2985.972887158420601e-2981.1945774316841202e-2972.3891548633682403e-2974.7783097267364807e-2979.556619453472961e-2971.9113238906945923e-2963.8226477813891845e-2967.645295562778369e-2961.5290591125556738e-2953.0581182251113476e-2956.116236450222695e-2951.223247290044539e-2942.446494580089078e-2944.892989160178156e-2949.785978320356312e-2941.9571956640712625e-2933.914391328142525e-2937.82878265628505e-2931.56575653125701e-2923.13151306251402e-2926.26302612502804e-2921.252605225005608e-2912.505210450011216e-2915.010420900022432e-2911.0020841800044864e-2902.0041683600089728e-2904.0083367200179456e-2908.016673440035891e-2901.6033346880071782e-2893.2066693760143564e-2896.413338752028713e-2891.2826677504057426e-2882.565335500811485e-2885.13067100162297e-2881.026134200324594e-2872.052268400649188e-2874.104536801298376e-2878.209073602596752e-2871.6418147205193505e-2863.283629441038701e-2866.567258882077402e-2861.3134517764154804e-2852.6269035528309608e-2855.2538071056619216e-2851.0507614211323843e-2842.1015228422647686e-2844.203045684529537e-2848.406091369059075e-2841.681218273811815e-2833.36243654762363e-2836.72487309524726e-2831.344974619049452e-2822.689949238098904e-2825.379898476197808e-2821.0759796952395615e-2812.151959390479123e-2814.303918780958246e-2818.607837561916492e-2811.7215675123832985e-2803.443135024766597e-2806.886270049533194e-2801.3772540099066388e-2792.7545080198132776e-2795.509016039626555e-2791.101803207925311e-2782.203606415850622e-2784.407212831701244e-2788.814425663402488e-2781.7628851326804976e-2773.5257702653609953e-2777.051540530721991e-2771.4103081061443981e-2762.8206162122887962e-2765.6412324245775924e-2761.1282464849155185e-2752.256492969831037e-2754.512985939662074e-2759.025971879324148e-2751.8051943758648296e-2743.610388751729659e-2747.220777503459318e-2741.4441555006918637e-2732.8883110013837273e-2735.776622002767455e-2731.155324400553491e-2722.310648801106982e-2724.621297602213964e-2729.242595204427927e-2721.8485190408855855e-2713.697038081771171e-2717.394076163542342e-2711.4788152327084684e-2702.9576304654169368e-2705.9152609308338736e-2701.1830521861667747e-2692.3661043723335494e-2694.732208744667099e-2699.464417489334198e-2691.8928834978668395e-2683.785766995733679e-2687.571533991467358e-2681.5143067982934716e-2673.0286135965869433e-2676.0572271931738865e-2671.2114454386347773e-2662.4228908772695546e-2664.845781754539109e-2669.691563509078218e-2661.9383127018156437e-2653.8766254036312874e-2657.753250807262575e-2651.550650161452515e-2643.10130032290503e-2646.20260064581006e-2641.240520129162012e-2632.481040258324024e-2634.962080516648048e-2639.924161033296096e-2631.984832206659219e-2623.969664413318438e-2627.939328826636877e-2621.5878657653273753e-2613.1757315306547506e-2616.351463061309501e-2611.2702926122619002e-2602.5405852245238005e-2605.081170449047601e-2601.0162340898095202e-2592.0324681796190404e-2594.064936359238081e-2598.129872718476162e-2591.6259745436952323e-2583.2519490873904646e-2586.503898174780929e-2581.3007796349561859e-2572.6015592699123717e-2575.2031185398247434e-2571.0406237079649487e-2562.0812474159298974e-2564.162494831859795e-2568.32498966371959e-2561.664997932743918e-2553.329995865487836e-2556.659991730975672e-2551.3319983461951343e-2542.6639966923902686e-2545.327993384780537e-2541.0655986769561075e-2532.131197353912215e-2534.26239470782443e-2538.52478941564886e-2531.704957883129772e-2523.409915766259544e-2526.819831532519088e-2521.3639663065038175e-2512.727932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84.276423536147513e-488.552847072295026e-481.7105694144590052e-473.4211388289180104e-476.842277657836021e-471.3684555315672042e-462.7369110631344083e-465.473822126268817e-461.0947644252537633e-452.1895288505075267e-454.3790577010150533e-458.758115402030107e-451.7516230804060213e-443.5032461608120427e-447.006492321624085e-441.401298464324817e-432.802596928649634e-435.605193857299268e-431.1210387714598537e-422.2420775429197073e-424.4841550858394146e-428.968310171678829e-421.7936620343357659e-413.5873240686715317e-417.174648137343063e-411.4349296274686127e-402.8698592549372254e-405.739718509874451e-401.1479437019748901e-392.2958874039497803e-394.5917748078995606e-399.183549615799121e-391.8367099231598242e-383.6734198463196485e-387.346839692639297e-381.4693679385278594e-372.9387358770557188e-375.8774717541114375e-371.1754943508222875e-362.350988701644575e-364.70197740328915e-369.4039548065783e-361.88079096131566e-353.76158192263132e-357.52316384526264e-351.504632769052528e-343.009265538105056e-346.018531076210112e-341.2037062152420224e-332.4074124304840448e-334.8148248609680896e-339.629649721936179e-331.9259299443872359e-323.8518598887744717e-327.703719777548943e-321.5407439555097887e-313.0814879110195774e-316.162975822039155e-311.232595164407831e-302.465190328815662e-304.930380657631324e-309.860761315262648e-301.9721522630525295e-293.944304526105059e-297.888609052210118e-291.5777218104420236e-283.155443620884047e-286.310887241768094e-281.2621774483536189e-272.5243548967072378e-275.0487097934144756e-271.0097419586828951e-262.0194839173657902e-264.0389678347315804e-268.077935669463161e-261.6155871338926322e-253.2311742677852644e-256.462348535570529e-251.2924697071141057e-242.5849394142282115e-245.169878828456423e-241.0339757656912846e-232.0679515313825692e-234.1359030627651384e-238.271806125530277e-231.6543612251060553e-223.3087224502121107e-226.617444900424221e-221.3234889800848443e-212.6469779601696886e-215.293955920339377e-211.0587911840678754e-202.1175823681357508e-204.2351647362715017e-208.470329472543003e-201.6940658945086007e-193.3881317890172014e-196.776263578034403e-191.3552527156068805e-182.710505431213761e-185.421010862427522e-181.0842021724855044e-172.168404344971009e-174.336808689942018e-178.673617379884035e-171.734723475976807e-163.469446951953614e-166.938893903907228e-161.3877787807814457e-152.7755575615628914e-155.551115123125783e-151.1102230246251565e-142.220446049250313e-144.440892098500626e-148.881784197001252e-141.7763568394002505e-133.552713678800501e-137.105427357601002e-131.4210854715202004e-122.8421709430404007e-125.6843418860808015e-121.1368683772161603e-112.2737367544323206e-114.547473508864641e-119.094947017729282e-111.8189894035458565e-103.637978807091713e-107.275957614183426e-101.4551915228366852e-92.9103830456733704e-95.820766091346741e-91.1641532182693481e-82.3283064365386963e-84.6566128730773926e-89.313225746154785e-81.862645149230957e-73.725290298461914e-77.450580596923828e-70.00000149011611938476560.00000298023223876953120.00000596046447753906250.0000119209289550781250.000023841857910156250.00004768371582031250.0000953674316406250.000190734863281250.00038146972656250.0007629394531250.001525878906250.00305175781250.0061035156250.012207031250.02441406250.0488281250.097656250.19531250.3906250.781251.56251.1250.250.5100'
FAILED: Expected: '0', instead got: ''
使用Math.floor()
执行float时，分割返回decimal/2
function binary(decimal) {
var arr = [];
var remainderX;
while (decimal > 0) {
remainderX = decimal % 2;
decimal = Math.floor(decimal / 2);
arr.unshift(remainderX);
}
return arr.join('');
}
console.log(binary(10))有一种非常简单的方法可以执行您想要的操作：
function binary(decimal) {
return Number(decimal).toString(2);
}