javascript - 如何正确传递和比较字符串 JavaScript

Question

我在 if 语句上遇到错误 - 它无法进行比较(“意外的标识符”)但我不明白为什么。我猜这与“table”不是字符串对象这一事实有关。此代码是在 C 代码内部实现的，因此您应该忽略“\n”和“符号

              "function postRow(i,table){\n"

                "var desc=document.getElementsByName('description'+table);\n"
                "var inter=document.getElementsByName('logInterval'+table);\n"  
                
                "if( table.equals('AN') || table.equals('OW') ){\n"
                  "var mu=document.getElementsByName('mul'+table);\n"
                  "var di=document.getElementsByName('div'+table);\n"
                  "var off=document.getElementsByName('offset'+table);\n"
               "$.post('',{func:'saveTable'+table,\n"
                            "index:i,\n"
                            "description:desc[i].value,\n"
                            "logInterval:inter[i].value,\n"
                            "mul:mu[i].value,\n"
                            "div:di[i].value,\n"
                            "offset:off[i].value,\n"  
                        "});"
                "}\n"
                
                "else if (table.equals('DG') ){\n"
                  "var count=document.getElementsByName('counterDG');\n"
                  "$.post('',{func:'saveTable'+table,\n"
                            "index:i,\n"
                            "description:desc[i].value,\n"
                            "logInterval:inter[i].value,\n"
                            "counter:count[i].value,\n"
                       "});\n"                 
                "}\n"

                "setTimeout(updateTable(table),1000);"     
                "}\n"

调用函数:

onclick=postRow(i,"DG");

Answer 1

Javascript 字符串没有 .equals() 方法。使用 === 运算符:

if (table === 'AN' || table === 'OW')