我正在尝试一个带有HTML和Javascript的小项目。我已经编写了3个函数,并想调用它们来显示使用表单中输入的2个值的结果。
我似乎在获取Javascript代码要识别的两个值时遇到了困难。
如果有人能指出我做错了什么,我会很高兴的。
这是我的项目。
//degrees to radians function
function degRad(deg) {
var rad = ( Math.PI / 180) * deg;
return rad;
}
//easting calcualtion function
function east(deg, dist) {
var east = (Math.cos(degRad(deg)) * dist );
return east;
}
// northing calculation functions
function north(deg, dist) {
var north = (Math.sin(degRad(deg)) * dist);
return north;
}
//calling functions and out putting the results
document.write("easting equals " + east(document.getElementById("Ang"),document.getElementById("Dist")) + "<br>");
document.write("northing equals " + north(document.getElementById("Ang"),document.getElementById("Dist")));
<!--This is the page elements to input the angle and distance-->
<fieldset style="padding: 20px;">
<legend>Polar to Rectangular calculator</legend>
Angle: <input type="number" value="14" id="Ang" style="border: 1px solid;"/>
Distance: <input type="number" value="10" id="Dist" style="border: 1px solid;"/>
<input type="submit" value="Submit">
</fieldset>
https://stackoverflow.com/questions/52882156
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