javascript - 有一种方法可以“压缩”以下内容，因此不会太长

我将其放在摘要中以便于查看。
代码可能更大，因此如何缩短代码的响应/上载速度呢？请帮忙！

LED0 = "";
LED1 = "";
LED2 = "";
LED3 = "";
LED4 = "";
LED5 = "";
LED6 = "";
LED7 = "";
LED8 = "";
LED9 = "";
LED10 = "";
LED11 = "";
LED12 = "";
LED13 = "";
LED14 = "";
LED15 = "";
var LED0_state = 0;
var LED1_state = 0;
var LED2_state = 0;
var LED3_state = 0;
var LED4_state = 0;
var LED5_state = 0;
var LED6_state = 0;
var LED7_state = 0;
var LED8_state = 0;
var LED9_state = 0;
var LED10_state = 0;
var LED11_state = 0;
var LED12_state = 0;
var LED13_state = 0;
var LED14_state = 0;
var LED15_state = 0;



request.open("GET", "ajax_inputs" + strLED0 + strLED1 + strLED2 + strLED3 + strLED4 + strLED5 + strLED6 + strLED7 + strLED8 + strLED9 + strLED10 + strLED11 + strLED12 + strLED13 + strLED14 + strLED15 + nocache, true);
request.send(null);
setTimeout('GetArduinoIO()', 2000);
strLED0 = "";
strLED1 = "";
strLED2 = "";
strLED3 = "";
strLED4 = "";
strLED5 = "";
strLED6 = "";
strLED7 = "";
strLED8 = "";
strLED9 = "";
strLED10 = "";
strLED11 = "";
strLED12 = "";
strLED13 = "";
strLED14 = "";
strLED15 = "";



		function GetButImp0()
		{
			if (LED0_state === 1) {
				LED0_state = 0;
				strLED0 = "&LED0=0";
			}
			else {
				LED0_state = 1;
				strLED0 = "&LED0=1";
			}
		}
		function GetButImp1()
		{
			if (LED1_state === 1) {
				LED1_state = 0;
				strLED1 = "&LED1=0";
			}
			else {
				LED1_state = 1;
				strLED1 = "&LED1=1";
			}
		}
		function GetButImp2()
		{
			if (LED2_state === 1) {
				LED2_state = 0;
				strLED2 = "&LED2=0";
			}
			else {
				LED2_state = 1;
				strLED2 = "&LED2=1";
			}
		}
		function GetButImp3()
		{
			if (LED3_state === 1) {
				LED3_state = 0;
				strLED3 = "&LED3=0";
			}
			else {
				LED3_state = 1;
				strLED3 = "&LED3=1";
			}
		}
		function GetButImp4()
		{
			if (LED4_state === 1) {
				LED4_state = 0;
				strLED4 = "&LED4=0";
			}
			else {
				LED4_state = 1;
				strLED4 = "&LED4=1";
			}
		}
		function GetButImp5()
		{
			if (LED5_state === 1) {
				LED5_state = 0;
				strLED5 = "&LED5=0";
			}
			else {
				LED5_state = 1;
				strLED5 = "&LED5=1";
			}
		}



// ..........etc............//

感谢您的帮助！

最佳答案

您可以使用对象数组并使用循环对其进行初始化。这是一个例子：

var leds = [];
var nocache = "";
for(var i = 0; i <= 15; i++){
    leds.push({
                index : i,
                state : false,
                switch : function(){
                          var ret = "LED" + this.index + "=" + (this.state?"1":"0");
                          this.state = !this.state;
                          return ret;
                      }
              });
}


function getURL(ledsIndexes){
    var url = "ajax_inputs?";
    ledsIndexes.forEach(function(ledIndex){
        url+=leds[ledIndex].switch()+"&";
    });
    return url.replace(/\&$/, "") + nocache;
}

console.log(getURL([1,3,4,5]));
console.log(getURL([1,3,4,5]));

从代码看来，此应用似乎用于控制Arduino板的GPIO。

我的代码要做的只是创建一个包含15个对象的数组leds。这些对象的结构如下：index指定这是哪个引脚，state跟踪其状态（true或false），而switch是返回a的函数。字符串（“ LED [N] = [STATE]”）并切换引脚的状态。