JavaScript Object.isSealed()

Tafarki da Wanda ake amfani da su

Object.isSealed() Hanyar yana fannar da neman kamar yadda ake kammala abin da ake cikin. Idan abin ya kammala, za a samu tsohon kuma.

Hanyar:

Object.preventExtensions() ba amince, amantakar da a yiwa.

Object.seal() Raba ka fi kara, amma raba da kara, da kuma yanki

Object.freeze() Raba ka fi kara, ci gaba da kara, da kuma yanki

Object.isExtensible() Idan object yana zama extensible, za a samu true.

Object.isSealed() Idan object yana zama sealed, za a samu true.

Object.isFrozen() Idan object yana zama frozen, za a samu true.

Instance

Example 1

// Create object
const person = {firstName: "Bill", lastName: "Gates"};
// Seal object
Object.seal(person);
// Za a samu true
let answer = Object.isSealed(person);

Try it yourself

Example 2

// Create array
const fruits = ["Banana", "Orange", "Apple", "Mango"];
// Seal array
Object.seal(fruits);
// Za a samu true
let answer = Object.isSealed(fruits);

Try it yourself

Syntax

Object.isSealed(object)

Parameter

Return value

Support da browsers

Object.isSealed() Hanyar ECMAScript5 (ES5) shine.

Daga shekara 2013, Yuli 7, duk browsers na yau suka kaiyewa aiki da kaiyewa kaiyewa da ES5 (JavaScript 2009):