Advertisements If I have a class declaration in Javascript with a simple method as so: class Foo { constructor(a, b) { this.a = a; this.b = b; } sum() { return this.a + this.b; } } I can then create an object and call its sum() method. var bar = new Foo(2, 5); // {"a":… Read More Recover methods from saved Javascript obect

Advertisements I found some answers suggesting iterating through the Map, setting the iterated element to a variable and then reading it after the iteration. But isn’t there any better, more elegant view? I could not find a better solution so far. >Solution : You can convert the Map to an array of entries, then get… Read More Getting the last item from a Map – a simple solution?

Advertisements I’m in this situation where I have to create a function inside a function, let’s call the parent function exo() and the nested one childexo().I need to parse the value of a result from childexo() to another function outside both exo() and childexo(), let’s call that one, as caller. The note here should be… Read More How do I parse the value of a nested function to another nested function to get the value in JavaScript

Advertisements I am trying to change the div class so i can add the functionality to it Here is my JS Code idName is giving me name as Tuesday console.log(document.querySelector("#w1_"+idName.split(‘_’)[1]).previousSibling); document.querySelector("#w1_"+idName.split(‘_’)[1]).previousSibling.classList.remove(‘specialCheckbox2’); document.querySelector("#w1_"+idName.split(‘_’)[1]).previousSibling.classList.add(‘specialCheckbox3’); document.querySelector("#w1_"+idName.split(‘_’)[1]).disabled = true; and here my html <div class="specialCheckbox2"><input class="checktip" type="checkbox" value="1" name="w1_Tuesday" id="w1_Tuesday"><label for="w1_Tuesday"></label></div> >Solution : The element with the w1_Tuesday id… Read More javascript unable to get previousSibling Class

Advertisements I do not get what y(x) in the third line does var x = 5; var y = 1; ( (x, y)=>(y => y(x) + 1)(x => x * 3 + y) ) (x, y); // returns 17 I suspect that the f(x) calls the arrow function on the right. >Solution : That: (y… Read More What does y(x) do in this arrow funtion

Advertisements What I’m trying to achieve is an event to trigger on a div when the div scrollheight reaches the bottom; The code I have kind of resembles what I’m trying to achieve however this does not work. <div id="testNav"></div> <script> window.onscroll = function() { var objDiv = document.getElementById("testNav"); var DivHeight = objDiv.scrollHeight; var clientHeight… Read More event on div scrollheight bottom

Advertisements so am doing this exercise where it asks me to return a list of strings for each counted number. I am aware that the function will end as soon as it return a value. I tried couple of other variations such as continue and break, but i cant seem to figure it out. Thank… Read More for loop stops after first iteration JS

Advertisements i want to Replace all id format: Image* My html: <script src="//ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script> <label class="control-label abc-control-label" id="image3"></label> <br> <label class="control-label abc-control-label" id="image2"></label> <br> <label class="control-label abc-control-label" id="image1"></label> <br> <img src="https://i.imgur.com/ZE8HMqh.png&quot; style="width:200px"> My Javascript: function changeImage () { var element = document.getElementById(‘image2’); //myelement.innerHTML= "New Text"; $image_markdown = element.innerHTML; $image_format = $image_markdown.match(/!\[.*?\]\((.*?)\)/)[1]; $new_image = ‘<img src="’ +… Read More replace all elements with id format when the page loads

Advertisements This might be a newbie question, or just plain dumb because I might just not be realizing that this is jsut like the higher level functions, like currying or the other I forgot the name. Anyways alert(prompt().slice(0,250)); Why is prompt executed before alert? The only thing I can think is that it’s a higher… Read More Why is a prompt inside an alert execute before the alert prompt?

Advertisements Struggling with iterating through the following return json string from an API: { "data": [ { "ActionNeeded": null, "OldestStatus": null, "ServiceHost": "W501", "ServiceName": "Renewals", "ServiceStatusDateTime": "2023-03-15T22:47:05.313000", "ServiceVersion": "1.0.0", "SortOrder": "0", "TimeAgo": null }, { "ActionNeeded": null, "OldestStatus": null, "ServiceHost": "W202", "ServiceName": "Monitor", "ServiceStatusDateTime": "2023-03-15T22:46:42.560000", "ServiceVersion": null, "SortOrder": "1", "TimeAgo": null }, { "ActionNeeded": null,… Read More How do loop through nested json object with javascript?