In JavaScript, you can use the length attribute of the array object to get the length of the array. This attribute can set or return the number of elements in the array. You only need to use the "array.length" statement to return the array object. The value of the number of elements, that is, the length value.
The operating environment of this tutorial: windows7 system, javascript version 1.8.5, Dell G3 computer.
In JavaScript, if you want to get the length value of an array, you can use the length attribute of the array object.
The role of the length attribute: Set or return the number of elements in the array, that is, the length of the array.
Syntax for returning the length of the array:
array.length
Return value: Numeric value, indicating the number of elements of the array object.
Example:
var arr=[2,6,1,5,22,3,66,12,9]; arr.length;
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