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Quelle  change-array-by-copy.js

  Sprache: JAVA
 

// |jit-test|

load(libdir + 'array-compare.js');
load(libdir + "asserts.js");

var sequence = [123];
let reversedSequence = sequence.toReversed();
assertEq(arraysEqual(sequence, [123]), true);
assertEq(arraysEqual(reversedSequence, [321]), true);

sequence = [873588832142];
var sortedSequence = sequence.toSorted((x, y) => (x >= y));
assertEq(arraysEqual(sequence, [873588832142]), true);
assertEq(arraysEqual(sortedSequence, [354287321888]), true);

sequence = ["the""quick""fox""jumped""over""the""lazy""dog"];
sortedSequence = sequence.toSorted();
assertEq(arraysEqual(sequence, ["the""quick""fox""jumped""over""the""lazy""dog"]), true);
assertEq(arraysEqual(sortedSequence, ["dog""fox""jumped""lazy""over""quick""the""the"]), true);

/* Test that the correct exception is thrown with a
   non-function comparefn argument */

assertThrowsInstanceOf(() => sequence.toSorted([123]), TypeError);

/* toSpliced */
/* examples from:
  https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/splice */


function unchanged(a) {
    assertEq(arraysEqual(a, ['angel''clown''mandarin''sturgeon']), true);
}

// Remove no elements before index 2, insert "drum"
let myFish = ['angel''clown''mandarin''sturgeon']
var myFishSpliced = myFish.toSpliced(20'drum')
unchanged(myFish);
assertEq(arraysEqual(myFishSpliced, ['angel''clown''drum''mandarin''sturgeon']), true);


// Remove no elements before index 2, insert "drum" and "guitar"
var myFishSpliced = myFish.toSpliced(20'drum''guitar');
unchanged(myFish);
assertEq(arraysEqual(myFishSpliced, ['angel''clown''drum''guitar''mandarin''sturgeon']), true);

// Remove 1 element at index 3
let myFish1 = ['angel''clown''drum''mandarin''sturgeon']
myFishSpliced = myFish1.toSpliced(31);
assertEq(arraysEqual(myFish1, ['angel''clown''drum''mandarin''sturgeon']), true);
assertEq(arraysEqual(myFishSpliced, ['angel''clown''drum''sturgeon']), true);

// Remove 1 element at index 2, and insert 'trumpet'
let myFish2 = ['angel''clown''drum''sturgeon']
myFishSpliced = myFish2.toSpliced(21'trumpet');
assertEq(arraysEqual(myFish2, ['angel''clown''drum''sturgeon']), true);
assertEq(arraysEqual(myFishSpliced, ['angel''clown''trumpet''sturgeon']), true);

// Remove 2 elements at index 0, and insert 'parrot', 'anemone', and 'blue'
let myFish3 = ['angel''clown''trumpet''sturgeon']
myFishSpliced = myFish3.toSpliced(02'parrot''anemone''blue');
assertEq(arraysEqual(myFish3, ['angel''clown''trumpet''sturgeon']), true);
assertEq(arraysEqual(myFishSpliced, ['parrot''anemone''blue''trumpet''sturgeon']), true);

// Remove 2 elements, starting at index 2
let myFish4 = ['parrot''anemone''blue''trumpet''sturgeon']
myFishSpliced = myFish4.toSpliced(22);
assertEq(arraysEqual(myFish4, ['parrot''anemone''blue''trumpet''sturgeon']), true);
assertEq(arraysEqual(myFishSpliced, ['parrot''anemone''sturgeon']), true);

// Remove 1 element from index -2
myFishSpliced = myFish.toSpliced(-21);
unchanged(myFish);
assertEq(arraysEqual(myFishSpliced, ['angel''clown''sturgeon']), true);

// Remove all elements, starting from index 2
myFishSpliced = myFish.toSpliced(2);
unchanged(myFish);
assertEq(arraysEqual(myFishSpliced, ['angel''clown']), true);

/* with */
sequence = [123];
let seq_with = sequence.with(142);
assertEq(arraysEqual(sequence, [123]), true);
assertEq(arraysEqual(seq_with, [1423]), true);
assertEq(arraysEqual(sequence.with(-042), [4223]), true);

/* false/true => index 0/1 */
assertEq(arraysEqual(sequence.with(false42), [4223]), true);
assertEq(arraysEqual(sequence.with(true42), [1423]), true);

/* null => 0 */
assertEq(arraysEqual(sequence.with(null42), [4223]), true);
/* [] => 0 */
assertEq(arraysEqual(sequence.with([], 42), [4223]), true);

assertEq(arraysEqual(sequence.with("2"42), [1242]), true);

/* Non-numeric indices => 0 */
assertEq(arraysEqual(sequence.with("monkeys"42), [4223]), true);
assertEq(arraysEqual(sequence.with(undefined, 42), [4223]), true);
assertEq(arraysEqual(sequence.with(function() {}, 42), [4223]), true);

assertThrowsInstanceOf(() => sequence.with(342), RangeError);
assertThrowsInstanceOf(() => sequence.with(542), RangeError);
assertThrowsInstanceOf(() => sequence.with(-1042), RangeError);
assertThrowsInstanceOf(() => sequence.with(Infinity, 42), RangeError);


Messung V0.5 in Prozent
C=86 H=97 G=91

¤ Dauer der Verarbeitung: 0.10 Sekunden  (vorverarbeitet am  2026-06-05) ¤

*© Formatika GbR, Deutschland






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