Js 腳本示例

1. 解析通訊協議並繪製曲線

					(function main() {
						var str = receive.getString(); //Read the Received string
						receive.write(str); //Prints the received characters
						receive.write(" -> ", "red"); //Print the arrow
						
						var buf = util.hexStringToBytes(str); //Turn the received hex string into an array.
						var val1 = util.bytesToInteger(buf, 7, 2); // val1 Turn the array into integers by index and length
						var val2 = util.bytesToInteger(buf, 9, 2); // val2
						receive.write('val1=' + val1 + " ", "LawnGreen"); //Print the converted integer
						receive.write('val2=' + val2, "yellow");
						receive.write("\r\n"); //Print line breaks for easy observation.
						
						chart.write("val1=" + val1 + "\n"); //Draw to waveform interface. The name is val1
						chart.write("val2=" + val2 + "\n"); //Draw to waveform interface. The name is val2
					})();
js to chart

2. 獲取時間字符串

					// Format  10:48:59.671  h:m:s.ms
					function timeToString() {
						let d = new Date();
						let h = d.getHours().toString().padStart(2, '0');
						let m = d.getMinutes().toString().padStart(2, '0');
						let s = d.getSeconds().toString().padStart(2, '0');
						let ms = d.getMilliseconds().toString().padStart(3, '0');
						return h + ":" + m + ":" + s + "." + ms;
					}

3. 十六進位字串轉位十進位

                    /********************************
                    *
                    * Notes: 十六進位字串轉位十進位
                    *
                    *
                    *
                    *
                    *******************************/
                    
                    {
                        let str = receive.getString();       //讀取接收到的字串
                        receive.write(str);                  //輸出到接收視窗
                        receive.write(" -> ", "DarkOrange"); //輸出箭頭
                        
                        let buf = util.hexStringToBytes(str);     //轉為位元組數組
                        let val = util.bytesToInteger(buf, 0, 2); // 轉為 int16;
                        
                        console.log(val); //列印到輸出視窗
                        receive.write(val.toString(), "DarkOrange"); //輸出轉換後的數值
                    }

4. 整數轉為字串 

                        val = 10;
                        let str1 = val.toString();   //轉十進位字串 '10'
                        let str2 = val.toString(16); //轉十六進位字串 'a'
                        let str3 = val.toString(8);  //轉八進位字串 '12'
                        let str4 = val.toString(2);  //轉二進位字串 '1010'
                        let str5 = val.toString(2).padStart(8, '0'); //轉二進位字串不足8位填入0 '00001010'

5. 列印函數原始碼 

                    (function main() {
                        console.dir(util.bytesToInteger);
                    })();
print code