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2026/10/26 -If compareFn is not supplied, all non- undefined array elements are sorted by converting them to strings and comparing strings in UTF-16 code units order.

2026/10/8 -Comparing. JOIN(sourcearray [,delimiter]). You can use the JOIN to return a text string containing all the elements in an array.

2026/10/9 -Compare arrays by first checking length and then scanning index-by-index for strict equality. This is the standard shallow equality test when arrays contain ...

6日前 -It's also worth noting that the values are converted to strings only within the compare function. The values in the sorted array don't change type.

2026/10/28 -Description: Converts the array to a string, with values separated by commas. To use a different separator, use join() instead. Syntax: Array .toString().

5日前 -In JavaScript, comparing primitive types (like numbers, strings, and booleans) is straightforward—if the values match, the comparison returns true. But when it ...

22時間前 -sort() Actually Do Without a Compare Function? JavaScript's default sort() converts every element to a string and compares those strings character by character.

2026/10/26 -The includes() method compares searchElement to elements of the array using the SameValueZero algorithm. This algorithm works like strict equality === (where -0 ...

2026/10/19 -Explore five surprising JavaScript array behaviors, from empty slots and length to iteration and indexing, and understand why they work that way.