Warning: file_get_contents(/data/phpspider/zhask/data//catemap/2/node.js/34.json): failed to open stream: No such file or directory in /data/phpspider/zhask/libs/function.php on line 167

Warning: Invalid argument supplied for foreach() in /data/phpspider/zhask/libs/tag.function.php on line 1116

Notice: Undefined index: in /data/phpspider/zhask/libs/function.php on line 180

Warning: array_chunk() expects parameter 1 to be array, null given in /data/phpspider/zhask/libs/function.php on line 181

Warning: file_get_contents(/data/phpspider/zhask/data//catemap/9/opencv/3.json): failed to open stream: No such file or directory in /data/phpspider/zhask/libs/function.php on line 167

Warning: Invalid argument supplied for foreach() in /data/phpspider/zhask/libs/tag.function.php on line 1116

Notice: Undefined index: in /data/phpspider/zhask/libs/function.php on line 180

Warning: array_chunk() expects parameter 1 to be array, null given in /data/phpspider/zhask/libs/function.php on line 181
Javascript 如果语句测试为false,但由于const未通过而应为true?_Javascript_Node.js - Fatal编程技术网

Javascript 如果语句测试为false,但由于const未通过而应为true?

Javascript 如果语句测试为false,但由于const未通过而应为true?,javascript,node.js,Javascript,Node.js,我试图测试(tk0==address.GGG)这是否失败,但应该是真的。如果我这样做,它会工作,如果(tk0==“1234567890”),那么它会工作。我可以在console.log中的if之前和console.log中的if之后读取address.GGG。。测试时,它们都显示字符串的类型。我不知所措。。我也试着用let和var设置GGG const addresses = { GGG: '1234567890', PPP: '4958938485' } //I know that t

我试图测试(tk0==address.GGG)这是否失败,但应该是真的。如果我这样做,它会工作,如果(tk0==“1234567890”),那么它会工作。我可以在console.log中的if之前和console.log中的if之后读取address.GGG。。测试时,它们都显示字符串的类型。我不知所措。。我也试着用let和var设置GGG

const addresses = {
  GGG: '1234567890',
  PPP: '4958938485'
}
//I know that tk0 is going to = GGG for this example.
factory.on('something', async (tk0, tk1, pa) => {

  let tkIn , tkOut ;
  
  if(tk0 == addresses.GGG) {
    tkIn = tk0;

  }

    console.log(`tkIn: ${tkIn}`);
  
});

 

在if之前添加此选项时,您是否看到任何感叹号<代码>控制台.log(addresses.GGG+'\n'+addresses.GGG.split('').map((c,i)=>c===tk0[i]?'-':'!')。连接('')+'\n'+tk0)没有直接关系,但请看@blex you ROCK!非常感谢。