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This release is 3 versions behind 1.0.10 — the latest version of @std/collections. Jump to latest

@std/collections@1.0.7
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denoland/std

Pure functions for common tasks related to collection types like arrays and objects

This package works with Cloudflare Workers, Node.js, Deno, Bun, Browsers
This package works with Cloudflare Workers
This package works with Node.js
This package works with Deno
This package works with Bun
This package works with Browsers
JSR Score
100%
Published
6 months ago (1.0.7)
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Package root>_utils.ts
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// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
// This module is browser compatible.

/**
 * Filters the given array, removing all elements that do not match the given predicate
 * **in place. This means `array` will be modified!**.
 */
export function filterInPlace<T>(
  array: Array<T>,
  predicate: (el: T) => boolean,
): Array<T> {
  let outputIndex = 0;

  for (const cur of array) {
    if (!predicate(cur)) {
      continue;
    }

    array[outputIndex] = cur;
    outputIndex += 1;
  }

  array.splice(outputIndex);

  return array;
}