13af6ab5fSopenharmony_ci# Destructuring assignment is not supported 23af6ab5fSopenharmony_ci 33af6ab5fSopenharmony_ciRule ``arkts-no-destruct-assignment`` 43af6ab5fSopenharmony_ci 53af6ab5fSopenharmony_ci**Severity: error** 63af6ab5fSopenharmony_ci 73af6ab5fSopenharmony_ciArkTS does not support destructuring assignment. Use other idioms (e.g., 83af6ab5fSopenharmony_cia temporary variable, where applicable) for replacement. 93af6ab5fSopenharmony_ci 103af6ab5fSopenharmony_ci 113af6ab5fSopenharmony_ci## TypeScript 123af6ab5fSopenharmony_ci 133af6ab5fSopenharmony_ci 143af6ab5fSopenharmony_ci``` 153af6ab5fSopenharmony_ci 163af6ab5fSopenharmony_ci let [one, two] = [1, 2]; // semicolon is required here 173af6ab5fSopenharmony_ci [one, two] = [two, one] 183af6ab5fSopenharmony_ci 193af6ab5fSopenharmony_ci let head, tail 203af6ab5fSopenharmony_ci [head, ...tail] = [1, 2, 3, 4] 213af6ab5fSopenharmony_ci 223af6ab5fSopenharmony_ci``` 233af6ab5fSopenharmony_ci 243af6ab5fSopenharmony_ci## ArkTS 253af6ab5fSopenharmony_ci 263af6ab5fSopenharmony_ci 273af6ab5fSopenharmony_ci``` 283af6ab5fSopenharmony_ci 293af6ab5fSopenharmony_ci let arr: number[] = [1, 2] 303af6ab5fSopenharmony_ci let one = arr[0] 313af6ab5fSopenharmony_ci let two = arr[1] 323af6ab5fSopenharmony_ci 333af6ab5fSopenharmony_ci let tmp = one 343af6ab5fSopenharmony_ci one = two 353af6ab5fSopenharmony_ci two = tmp 363af6ab5fSopenharmony_ci 373af6ab5fSopenharmony_ci let data: Number[] = [1, 2, 3, 4] 383af6ab5fSopenharmony_ci let head = data[0] 393af6ab5fSopenharmony_ci let tail: Number[] = [] 403af6ab5fSopenharmony_ci for (let i = 1; i < data.length; ++i) { 413af6ab5fSopenharmony_ci tail.push(data[i]) 423af6ab5fSopenharmony_ci } 433af6ab5fSopenharmony_ci 443af6ab5fSopenharmony_ci``` 453af6ab5fSopenharmony_ci 463af6ab5fSopenharmony_ci 47