Function insert

Parameters

• array: T[]

  The array of interest.

• index: number

  The index at which to insert the value. Negative values are taken as an offset from the end of the array.

• value: T

  The value to set at the specified index.

  Complexity

  Linear.

  Undefined Behavior

  An index which is non-integral.

  Example

  import { ArrayExt } from '@lumino/algorithm';
  
  let data = [0, 1, 2];
  ArrayExt.insert(data, 0, -1);  // [-1, 0, 1, 2]
  ArrayExt.insert(data, 2, 12);  // [-1, 0, 12, 1, 2]
  ArrayExt.insert(data, -1, 7);  // [-1, 0, 12, 1, 7, 2]
  ArrayExt.insert(data, 6, 19);  // [-1, 0, 12, 1, 7, 2, 19]