jquery loop through array

JavaScript
var arr = ['one','two','three','four','five'];
$.each(arr, function(index, value){
	console.log('The value at arr[' + index + '] is: ' + value);
});$( "li" ).each(function( index ) {
  console.log( index + ": " + $( this ).text() );
});
//looping through list elements in jquery
$('#myUlID li').each(function() {
  console.log($(this));
})//Array
$.each( arr, function( index, value ){
    sum += value;
});

//Object
$.each( obj, function( key, value ) {
    sum += value;
});$.each( obj, function( key, value ) {
  alert( key + ": " + value );
});// Generic Jquery Loop
var i;
for (i = 0; i < substr.length; ++i) {
    // do something with `substr[i]`
}
Source

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