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/myFilter (Callbacks).js

Created July 31, 2016 19:49
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https://repl.it/CgPh/12 created by sethopia
Raw
myFilter (Callbacks).js
// Attach a method to the Array prototype called myFilter.
// It should be utilized and perform exactly as Array.prototype.filter does. Use the code snippet below as a guide.
Array.prototype.myFilter = function(func) {
var newArr = [];
for (var i = 0; i < this.length; i++) {
if(func(this[i],i,this)) {
newArr.push(this[i]);
}
}
return newArr;
};
function isEven(num) {
return num % 2 === 0;
}
var arr = [0,1,2,3,4,5,6];
var filtered = arr.myFilter(isEven);
console.log(filtered); // should be [ 0, 2, 4, 6 ]
Raw
myFilter (Callbacks)_console_dump.txt
Native Browser JavaScript
>>> [ 0, 2, 4, 6 ]
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