Dabirin while na JavaScript

Tunansa da amfani

Dabirin while yana kafa girmuwa, girmuwan za a girmi a kusaan daidai shi yana samuwa.

Kamar yadda shi yana samuwa, girmuwan za a girmi. Kamar yadda shi yana samuwa da falsa, za a tosai.

JavaScript suka amincewa da nau'ikan girmuwan da dama:

  • for - a girmuwa mara yin girmuwa
  • for/in - a girmuwa yana cikin yankin abin da ke cikin
  • for/of - a girmuwa yana cikin yankin wucin gadi na wucin gadi
  • while - a girmuwa a kusaan daidai shi yana samuwa
  • do/while - a girmuwa cikakar a kuma tashiya, kuma a kusaan daidai shi yana samuwa, yana cikin girmuwa

ƙirɗo

var text = "";
var i = 0;
while (i < 5) {
  text += "<br>The number is " + i;
  i++;
}

yari ɗumma


  
}

ƙirɗo

var cars = ["BMW", "Volvo", "Saab", "Ford"];
var text = "";
var i = 0;

  
  i++;
}

yari ɗumma

ƙirɗo

ni ɗumma ɗumma ɗumma ɗumma ɗumma

var cars = ["BMW", "Volvo", "Saab", "Ford"];
var text = "";
var len = cars.length;
while (len--) {
  text += cars[len] + "<br>";
}

yari ɗumma

ƙirɗo

ɗaɗɗo break ƙaɗan - ɗumma ɗumma, amma ɗaɗɗo ɗanɗe i yimma "3"

var text = "";
var i = 0;
while (i < 5) {
  text += "<br>The number is " + i;
  i++;
  if (i == 3) {
    break;
  }
}

yari ɗumma

ƙirɗo

ɗaɗɗo continue ƙaɗan - ɗumma ɗumma, amma ɗaɗɗo ɗanɗe "3"

var text = "";
var i = 0;
while (i < 5) {
  i++;
  if (i == 3) {
    continue;
  }
text += "<br>The number is " + i;
}

yari ɗumma

ni ɗaya

ƙaɗan Chrome IE Firefox Safari Opera
while ni ɗaya ni ɗaya ni ɗaya ni ɗaya ni ɗaya

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