Each type of loop is more narrowly focussed than the previous. I had trouble finding true while loops in the wild — most examples could have been handled better with for or for-each. After each iteration of the loop, it prints the keys in the output by using the print statement. PostCSS is also popular, but it doesn’t provide any syntax of it’s own. How to iterate over the keys and values with ng-repeat in AngularJS ? Maximize count of elements that can be selected having minimum difference between their sum and K, Iterate associative array using foreach loop in PHP. See the Pen Stylus Social Media Loop by Miriam Suzanne (@mirisuzanne) on CodePen. This post has an example of looping through elements with jQuery by getting all the href attributes from the tags of a selected element. There is a PostCSS plugin postcss-functions that let’s you write functions in JavaScript that can do recursion and more. In this approach, select all the div elements from the first container, add them to the second container. Using for hue in range(0, 360, 10) would increase the count by 10 on each repetition. How to set the default value for an HTML