Created
June 19, 2016 05:50
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solutions for codewars challenges in javascript
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| //Rearange Number to Get its Maximum | |
| var maxRedigit = function(num) { | |
| var ou=[]; | |
| var snum=num.toString(); | |
| if (num<=0 || snum.length!=3){return null} | |
| for (var i=0,len=snum.length;i<len;i+=1){ | |
| ou.push(+snum.charAt(i));} | |
| var a=ou.sort(function(a,b){return b-a}).join(''); | |
| return parseInt(a) | |
| }; | |
| //Sir , showMe yourID | |
| function showMe(yourID){ | |
| var s=yourID.match(/^[0-9-a-z-]|-[a-z]|-$|\s/) | |
| if (s==null){return true;}else{return false;} | |
| } | |
| //The Coupon Code | |
| function checkCoupon(enteredCode, correctCode, currentDate, expirationDate){ | |
| var curdate=new Date(currentDate); | |
| var exdate=new Date(expirationDate); | |
| if(enteredCode!==correctCode || curdate>exdate){return false}else{return true} | |
| } | |
| //Name on billboard | |
| function billboard(name, price = 30){ | |
| var a=name.length; | |
| var tot=0; | |
| for(i=1;i<=a;i++){ | |
| tot+=price; | |
| } | |
| return tot | |
| } | |
| //How old will I be in 2099? | |
| function calculateAge(p,r) { | |
| if (r-p>1){ | |
| return "You are "+(r-p)+" years old." | |
| }else if(r===p-1){ | |
| return "You will be born in "+(p-r)+" year." | |
| }else if(r<p){ | |
| return "You will be born in "+(p-r)+" years." | |
| }else if(p===r-1){ | |
| return "You are "+(r-p)+" year old." | |
| }else{ | |
| return "You were born this very year!" | |
| } | |
| } | |
| //Fix your code before the garden dies! | |
| function rainAmount(mm){ | |
| if (mm < 40) { | |
| return "You need to give your plant " + Math.abs(40-mm) + "mm of water" | |
| }else { | |
| return "Your plant has had more than enough water for today!" | |
| }; | |
| } | |
| //Sum of positive | |
| function positiveSum(arr) { | |
| var sum=0 | |
| for(i=0;i<arr.length;i++){ | |
| if (arr[i]>=0){sum=sum+arr[i]} | |
| } | |
| return sum | |
| } | |
| //Heads and Legs | |
| function animals(heads, legs){ | |
| var x=(4*heads-legs)/2; | |
| var y=heads-x; | |
| if (x<0 || y<0){return 'No solutions'} | |
| if (x===Math.round(Math.abs(x))){return [x,heads-x]}else{return 'No solutions'} | |
| } | |
| //Match My Husband | |
| function match(usefulness,months){ | |
| var sum=usefulness.reduce(function(a,b){return a+b;},0); | |
| var grvt=100*Math.pow(Math.E,-0.15*months); | |
| if (sum>=Math.round(grvt,3)){return 'Match!';}else{return 'No match!';} | |
| } |
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