Feb 17, 2012 · How can I loop through all the entries in an array using JavaScript?

Mar 16, 2021 · arr.forEach( function (obj) { this.addObject(new Obj(obj.prop1, obj.prop2)); }); } } I'm assuming the context is changing and that 'this' refers the iterated 'obj', and not …

Jun 9, 2018 · The forEach() method executes a provided function once for each array element. From the above statement it is clear that you can not return from the middle of the execution of …

5 days ago · I am newbie in Javascrript. I have a variable having following details: var result = false; [{"a": "1","b": null},{"a": "2","b": 5}].forEach(function(call){ console ...

Sep 8, 2012 · I am trying loop on selected elements that queried with document.querySelectorAll, but how? For example I use: var checkboxes = document.querySelectorAll('.check'); for( i in …

Just a note: if you replace forEach with map above, it's then possible to aggregate values. map will then return a list of said values, thus potentially simplifying the code in other ways.

What is the current standard in 2017 in Javascript with for() loops vs a .forEach. I am currently working my way through Colt Steeles "Web Dev Bootcamp" on Udemy and he favours forEach …

Jun 10, 2010 · The above code will run the body of the loop the full length times, with s set to undefined for any missing elements, just like for.. of; if you instead want to handle only the …

Jun 7, 2011 · While forEach and every (as I understand it) can be hacked to return true on the first element it finds, it will still run through the entire array. Secondly, Javascript doesn't perform …

I would like to alert each letter of a string, but I am unsure how to do this. So, if I have: var str = 'This is my string'; I would like to be able to separately alert T, h, i, s, etc. This is j...