ArkTS Changelog

cl.arkts.1 Fix for Array Content Exceptions When Redefining Arrays with Literals After Element Deletion

Access Level

Public API

Reason for Change

After an element is deleted from an array defined by a literal, the array content is abnormal when the literal is used to define the array again.

Impact of the Change

This change requires application adaptation.

Before the change, when an array defined by a literal has elements deleted and is redefined with the same literal, the new array contains the elements that remained after deletion.

After the change, when an array defined by a literal has elements deleted and is redefined with the same literal, the new array contains the elements as originally defined by the literal.

Start API Level

Change Since

OpenHarmony SDK 6.0.0.32

Key API/Component Changes

N/A

Adaptation Guide

Check for instances where arrays are defined using literals and elements are deleted without other modifications.

For example:

for (let i = 0; i < 2; i++) {
    let arr = [0, 0]
    console.log(JSON.stringify(arr));
    delete arr[0];
}

Before the change, the output of this example is:

[0,0]
[null,0]

After the change, the output of this example is:

[0,0]
[0,0]

NOTE

The delete operator is not supported in ETS files, but remains available for use in third-party libraries and JavaScript files.

This change fixes the issue, ensuring that when an array defined by a literal has elements deleted and is redefined with the same literal, the new array contains the elements as originally defined by the literal.