JavaScript Array keys()
- Duba baya join()
- Duba baya length
- Raba saman JavaScript Array Reference Manual
Definition and Usage
keys() The method returns an Array Iterator object with the array keys.
Kada:keys() The method does not change the original array.
Example
Create an Array Iterator object that only contains the keys of the array, then iterate over each key:
var fruits = ["Banana", "Orange", "Apple", "Mango"];
var fk = fruits.keys();
for (x of fk) {
document.getElementById("demo").innerHTML += x + "<br>";
}
Syntax
array.keys()
Parameters
No Parameters.
Technical Details
| Return Value: | Object Array Iterator |
|---|---|
| Tsa JavaScript: | ECMAScript 6 |
Aiki da browser
Numan da tabben kawun kawu nuna kawu ka farko na browser da aiki sosai a wannan sabon taron.
| Chrome | Edge | Firefox | Safari | Opera |
|---|---|---|---|---|
| Chrome 38 | Edge 12 | Firefox 28 | Safari 8 | Opera 25 |
| 2014 Nufin Oktoba | 2015 Nufin Yuli | 2014 Nufin Marso | 2014 Nufin Oktoba | 2014 Nufin Oktoba |
Kada:Internet Explorer na a fi tara keys() Dabawo ɗanar
Duba ɗanar
Tuturu:JavaScript ɗanar yanki
Tuturu:JavaScript ɗanar yanki
Tuturu:Dabawo ɗanar yanki
Tuturu:JavaScript ɗanar yanki
Tuturu:JavaScript ɗanar yanki
- Duba baya join()
- Duba baya length
- Raba saman JavaScript Array Reference Manual
