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IznoRepeat (talk | contribs) m invert mvar-link placement for upcoming tstyles |
→Array: Added information about maximum array type length in JS. |
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[[Array data structure|Arrays]] are implemented so that only the defined elements use memory; they are "[[sparse array]]s". Setting {{code|lang=javascript|code=myArray[10] = 'someThing'}} and {{code|lang=javascript|code=myArray[57] = 'somethingOther'}} only uses space for these two elements, just like any other object. The <tt>length</tt> of the array will still be reported as 58. The maximum length of an array is 4,294,967,295 which corresponds to 32-bit binary number (11111111111111111111111111111111)<sub>2</sub>.
One can use the object declaration literal to create objects that behave much like associative arrays in other languages:
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