Normally on an event bind, you would just use $(this), but I’m fairly sure Backbone views are set up so that this always refer to the view, so try this: perpage: function(ev) { alert($(ev.target).text()); } REALLY LATE EDIT: You probably want to use $(ev.currentTarget). See dicussion on pawlik’s answer below
Take a look at lodash’ chunk: https://lodash.com/docs#chunk const data = [“a1”, “a2”, “a3”, “a4”, “a5”, “a6”, “a7”, “a8”, “a9”, “a10”, “a11”, “a12”, “a13”]; const chunks = _.chunk(data, 3); console.log(chunks); // [ // [“a1”, “a2”, “a3”], // [“a4”, “a5”, “a6”], // [“a7”, “a8”, “a9”], // [“a10”, “a11”, “a12”], // [“a13″] // ] <script src=”https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.15/lodash.min.js”></script>
Recursion is your friend. I updated the function to account for property arrays: function getObject(theObject) { var result = null; if(theObject instanceof Array) { for(var i = 0; i < theObject.length; i++) { result = getObject(theObject[i]); if (result) { break; } } } else { for(var prop in theObject) { console.log(prop + ‘: ‘ + … Read more
Here is a simple solution: var rendered_html = render(‘mytemplate’, {}); function render(tmpl_name, tmpl_data) { if ( !render.tmpl_cache ) { render.tmpl_cache = {}; } if ( ! render.tmpl_cache[tmpl_name] ) { var tmpl_dir=”/static/templates”; var tmpl_url = tmpl_dir + “https://stackoverflow.com/” + tmpl_name + ‘.html’; var tmpl_string; $.ajax({ url: tmpl_url, method: ‘GET’, dataType: ‘html’, //** Must add async: false, … Read more
sortBy says that it is a stable sort algorithm so you should be able to sort by your second property first, then sort again by your first property, like this: var sortedArray = _(patients).chain().sortBy(function(patient) { return patient[0].name; }).sortBy(function(patient) { return patient[0].roomNumber; }).value(); When the second sortBy finds that John and Lisa have the same room … Read more
.uniq/.unique accepts a callback var list = [{a:1,b:5},{a:1,c:5},{a:2},{a:3},{a:4},{a:3},{a:2}]; var uniqueList = _.uniq(list, function(item, key, a) { return item.a; }); // uniqueList = [Object {a=1, b=5}, Object {a=2}, Object {a=3}, Object {a=4}] Notes: Callback return value used for comparison First comparison object with unique return value used as unique underscorejs.org demonstrates no callback usage lodash.com shows … Read more
When you include Underscore, it attaches itself to the window object, and so is available globally. So you can use it from Angular code as-is. You can also wrap it up in a service or a factory, if you’d like it to be injected: var underscore = angular.module(‘underscore’, []); underscore.factory(‘_’, [‘$window’, function($window) { return $window._; … Read more
Apparently you can just pass a boolean to the toggle function $element.toggle(shouldElementBeVisible)
You can do it like this in both Underscore and Lodash (3.x and 4.x). var data = [{ “name”: “jim”, “color”: “blue”, “age”: “22” }, { “name”: “Sam”, “color”: “blue”, “age”: “33” }, { “name”: “eddie”, “color”: “green”, “age”: “77” }]; console.log( _.chain(data) // Group the elements of Array based on `color` property .groupBy(“color”) // … Read more
Just use a for loop: var times = 10; for(var i = 0; i < times; i++){ doSomething(); }