setTimeout global variable

Question

var delayTime = 2000;
for(var i = 0; i<this.textToWrite.length; i++){
  setTimeout(
    (
      function (s){
        return function () {
          this.writeText += s;
          console.log(this.writeText);
        }
      }(this.textToWrite[i])
    ), delayTime)
  delayTime += 2000;
}

have some problem with this.writeText. It's global variable but when i even comment += s line then i have undefined value... (I set writeText: string = "" globaly) Is this.writeText reference to global variable? How can I access global variables in this example? I need assing char from textToWrite object to writeText with 2s delay.

Did you difined textToWrite, and writeText globally like delayTime ? and what output you are looking for?. — Rohan Fating, Sep 12 '17 at 16:33

score 0 · Accepted Answer · edited Oct 10 '17 at 21:01

0

The problem can be that you used function word.

setTimeout(
((s) => {
    return () => {
      this.writeText += s;
      console.log(this.writeText);
    }
  }(this.textToWrite[i])
), delayTime)

Another way is to use it without this if its global variable:

 setTimeout(
((s) => {
    return () => {
      writeText += s;
      console.log(this.writeText);
    }
  }(this.textToWrite[i])
), delayTime)

edited Oct 10 '17 at 21:01

halfer

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answered Sep 12 '17 at 16:52

alexKhymenko

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You are welcome. Have a Great day :-) – alexKhymenko Sep 13 '17 at 08:00

score 0 · Answer 2 · edited Sep 12 '17 at 17:04

0

Only use arrow functions

settimeout(x => {
   console.log(x);
}, 1000);

not like this and it will not accept out side parameters

settimeout(funtion(x) {
   console.log(x);
}, 1000);

edited Sep 12 '17 at 17:04

eko

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answered Sep 12 '17 at 16:56

Sheik Althaf

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your right, thank you friendoo – Dominik Sep 13 '17 at 07:58

setTimeout global variable

2 Answers2