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I have made this sandbox test:
<html> <head> <title>whatever</title> <script type="text/javascript"> function myLittleTest() { var obj, arr, armap; arr = [1, 2, 3, 5, 7, 11]; obj = {}; obj = arr; alert (typeof arr); alert (typeof obj); // doesn't work in IE armap = obj.map(function (x) { return x * x; }); alert (typeof armap); } myLittleTest(); </script> </head> <body> </body> </html> I realize I can use jQuery's function $.map for making that line of code work, but, what am I missing on javascript datatypes?
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Use the Object. values() method to convert an object to an array of objects, e.g. const arr = Object. values(obj) . The Object.
The push() method is used to add one or multiple elements to the end of an array. It returns the new length of the array formed. An object can be inserted by passing the object as a parameter to this method. The object is hence added to the end of the array.
If you have an array-like object, (like arguments, for example,) you can get a real array made from it by calling Array.prototype.slice.call(o).
var o = {0:"a", 1:'b', length:2}; var a = Array.prototype.slice.call(o); a will be ["a", "b"]. This will only work right if you have a correctly set length property.
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