22
33// 大数相加:以字符串的形式读入两个较大的数字,编写一个函数计算它们的和,以字符串形式返回。
44function solveMeFirst1 ( number1 , number2 ) {
5- let longArr , shortArr ;
5+ let longStr , shortStr ;
66 if ( number1 . length > number2 . length ) {
7- longArr = Array . from ( number1 ) ;
8- shortArr = Array . from ( number2 ) ;
7+ longStr = number1 ;
8+ shortStr = number2 ;
99 } else {
10- longArr = Array . from ( number2 ) ;
11- shortArr = Array . from ( number1 ) ;
10+ longStr = number2 ;
11+ shortStr = number1 ;
1212 }
1313
14- const max = longArr . length , min = shortArr . length ;
14+ const max = longStr . length , min = shortStr . length ;
1515 let add10 = 0 , res = '' , num , num1 , num2 ;
1616 for ( let i = 0 ; i < max ; i ++ ) {
1717 if ( i < min ) {
18- num1 = Number ( longArr [ longArr . length - i - 1 ] ) ;
19- num2 = Number ( shortArr [ shortArr . length - i - 1 ] ) ;
18+ num1 = Number ( longStr [ longStr . length - i - 1 ] ) ;
19+ num2 = Number ( shortStr [ shortStr . length - i - 1 ] ) ;
2020 } else {
21- num1 = Number ( longArr [ longArr . length - i - 1 ] ) ;
21+ num1 = Number ( longStr [ longStr . length - i - 1 ] ) ;
2222 num2 = 0 ;
2323 }
2424 num = num1 + num2 + add10 ;
2525 add10 = 0 ;
26- if ( i !== max - 1 && num >= 10 ) {
26+ if ( num >= 10 && i !== max - 1 ) {
2727 num = num - 10 ;
2828 add10 = 1 ;
2929 }
@@ -32,4 +32,4 @@ function solveMeFirst1(number1, number2) {
3232 return res ;
3333}
3434
35- console . log ( solveMeFirst1 ( '589465849568 ' , '669784652318 ' ) , 589465849568 + 669784652318 ) ;
35+ console . log ( solveMeFirst1 ( '589465849568234523 ' , '66978465231823456 ' ) , 589465849568234523 + 66978465231823456 ) ;
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