基本的JScalc.io计算器故障（输出变量空白，不返回数字）

Question

我正在通过jscalc.io

制作一个超级基本的JS计算器

我的变量出现问题。这是a link to my calculator。

问题在于右下方的“GSD”输出。我没有得到任何语法错误，但GSD不会吐出一个数字......它只是空白？是因为我试图使用输出而不是输入来创建函数吗？

希望有人可以提供任何指导。

以下是我的GSD输出变量公式的相关代码：

'use strict';
var meters = inputs.W * inputs.L
;var kilometers = meters * 0.000001
;var acres = meters * 0.000247105
;var hectares = meters * 0.0001
;var miles = acres * 0.0015625
;var H = H
;var GSD = (Sw * H * 100) / (Fr * imW);

//GSD = (Sw * H * 100) / (Fr * imW)

// DRONE CAMERA TYPE SETTINGS RESOLUTION
console.log(inputs.camera);
var imW;
if (inputs.camera.toString() === 'P3I1'){
imW = 4000;
}
console.log(inputs.camera);
var imH;
if (inputs.camera.toString() === 'P3I1'){
imH = 3000;
}
console.log(inputs.camera);
var imW;
if (inputs.camera.toString() === 'I1P'){
imW = 4608;
}
console.log(inputs.camera);
var imH;
if (inputs.camera.toString() === 'I1P'){
imH = 3456;
}
console.log(inputs.camera);
var imW;
if (inputs.camera.toString() === 'CS100'){
imW = 4000;
}
console.log(inputs.camera);
var imH;
if (inputs.camera.toString() === 'CS100'){
imH = 3000;
}

// DRONE CAMERA TYPE SETTINGS FOCAL LENGTH
console.log(inputs.camera);
var Fr;
if (inputs.camera.toString() === 'P3I1'){
Fr = 3.61;
}
console.log(inputs.camera);
var Fr;
if (inputs.camera.toString() === 'I1P'){
Fr = 15;
}
console.log(inputs.camera);
var Fr;
if (inputs.camera.toString() === 'CS100'){
Fr = 5.2;
}

// DRONE CAMERA TYPE SETTINGS PIXEL PITCH
console.log(inputs.camera);
var PP;
if (inputs.camera.toString() === 'P3I1'){
PP = 1.56;
}
console.log(inputs.camera);
var PP;
if (inputs.camera.toString() === 'I1P'){
PP = 4.8;
}
console.log(inputs.camera);
var PP;
if (inputs.camera.toString() === 'CS100'){
PP = 3.4;
}

// DRONE CAMERA TYPE SETTINGS SENSOR WIDTH
console.log(inputs.camera);
var Sw;
if (inputs.camera.toString() === 'P3I1'){
Sw = 6.24;
}
console.log(inputs.camera);
var Sw;
if (inputs.camera.toString() === 'I1P'){
Sw = 22.12;
}
console.log(inputs.camera);
var Sw;
if (inputs.camera.toString() === 'CS100'){
Sw = 13.6;
}

return {
  meters: meters,
  kilometers: kilometers,
  acres: acres,
  hectares: hectares,
  miles: miles,
  imW: imW,
  imH: imH,
  Fr: Fr,
  PP: PP,
  Sw: Sw,
  GSD: GSD,
  // imH: imH
};

感谢您一起来看看！

Answer 1

问题出在var H = H行，这应该是var H = inputs.H