Console.log is there a way to name sent variables?

后端 未结 3 1839
死守一世寂寞
死守一世寂寞 2021-01-24 20:28

When sending items to console.log is there a way to name them? Similar to \"watch\" in visual studio

for example we have a var counter=1; so that in the co

相关标签:
3条回答
  • 2021-01-24 20:43

    You can use the label string followed by variable name and a "+" operator in between, as follows:

    console.log("Counter : " + counter);
    
    0 讨论(0)
  • 2021-01-24 20:43

    There is one workaround

    function p(variableInObject) {
        let name = Object.keys(variableInObject)[0]
        let value = variableInObject[name] 
        console.log(name, value)
    }
    let g = 5
    p({g}) // g 5
    // it even works with loops
    for (let i = 0; i < 3; i++) {
      p({i})  // i 0, then i 1, then i 2
    }
    
    0 讨论(0)
  • 2021-01-24 20:53

    Not directly, but you can just name them when you output them.

    console.log (and .error, .info, and .warn) let you pass any number of values at the same time, so it's super easy to just do something like this:

    console.log('counter', counter);
    

    which would output like:

    counter 1
    

    let counter = 0;
    
    for (let i = 0; i < 5; i++) {
      counter++;
      console.log('counter', counter);
    }

    0 讨论(0)
提交回复
热议问题