我是JS编程的新手,并想知道在函数内部循环多个参数的最佳方法是什么。
作为一个例子,我想计算一个复合利息公式,用一系列利率(var y)和投资的不同时间范围打印出结果(var z)。
我可以让我的代码使用一个循环(请参见下文),但是我不知道如何使用两个变量(循环遍历x和y)。 Y应该有以下循环:
for(y = 0; y> = 10; y ++)
你能指出我的方向吗?
非常感谢。
var futureValue = function formula (x,y,z) {
a = x * (Math.pow (1+y/100, z)); // where x is starting amount of money(principal), y is real interest rate in %, and z is the number of years for the investment
return a;
}
for (z = 0; z <20; z++){
console.log(futureValue (10000,5,z));
}
}
答案 0 :(得分:0)
您可以使用两个嵌套的for
循环和一个嵌套数组作为结果。
结果如下:
[ [ // year zero with no interest "10000.00", "10000.00" // ... ], [ // year one with interest "10100.00", // with 1 % "10200.00", // with 2 % "10300.00", // with 3 % "10400.00", // with 4 % "10500.00", // with 5 % "10600.00", // with 6 % "10700.00", // with 7 % "10800.00", // with 8 % "10900.00" // with 9 % "11000.00", // with 10% ], [ // year two with interest "10201.00", "10404.00", // ... ], // ... ]
function futureValue(capital, interestRate, years) {
return capital * Math.pow(1 + interestRate / 100, years);
}
var year,
interestRate,
temp,
result = [];
for (year = 0; year < 20; year++) {
temp = [];
for (interestRate = 1; interestRate <= 10; interestRate++) {
temp.push(futureValue(10000, interestRate, year).toFixed(2));
}
result.push(temp);
}
console.log(result);
.as-console-wrapper { max-height: 100% !important; top: 0; }
答案 1 :(得分:0)
在循环中描述您的变量
function formula (x,y,z) {
a = x * (Math.pow (1+y/100, z)); // where x is starting amount of money(principal), y is real interest rate in %, and z is the number of years for the investment
return a;
}
for (var z =0; z <20; z++){
var x=1000;
var y=5;
console.log(formula(x,y,z));
x++;//code for x on each iteration
y++ // code for y
}