I follow a javascript course and I am stuck with something. We get a website full of excercises and have to make all the test cases turn green. We have to check if an array is increasing and return true if that is the case.If the next value is the same as the previous the function must also return true.
Tag: arrays
Convert JSON array of objects to string array using Typescript
I am using Angular 2 (latest version). I am trying to convert a JSON array i.e. to a string array and store just the value in i.e array. I tried to use Stringify method but no luck. Answer This should do the job:
JavaScript: How to create unordered list from array?
I have the following array and I want to create an unordered list from it, but I am having trouble generating the unordered list in the proper format. I have searched similar questions but none of the existing solutions work for my problem. Here is my JavaScript code: The above code is producing the following…
Array watch with Vue.js 2
I’m having a set of selects (item.pricelists that are assigned to an item) rendered in a v-for loop and bound with v-model. Possible select options for that item are rendered with another v-for from item.valid_pricelists. Both are pulled from the server in the same array. Now I need to watch for when us…
JQuery click event and toggleClass method
I created a simple lottery ticket and I made selector with toggle method. This is my code. The toggle functionality works fine but I want to add a limitation so that only 7 numbers can be chosen in one container. Is there a way to achieve this. Here is my JSBIN > http://jsbin.com/menawu/1/edit?js,output An…
Find missing day from array of dates javascript
I am getting an array of day dates from an API: In this example the array is missing this date: What is the best way to find a missing day from an array of dates in Javascript or Angular? So that I later would be able to pass it to a datepicker as a disabled day. Answer Check this out:
Javascript how can I calculate total price in an array of items?
I’m new to js and have a cart in a webstore I am making for a Javascript assignment, and I can’t get my total price working which displays on the webpage when the user clicks on items to add to the cart. Here is my array of items, any help would be appreciated, thank you and here is my display
How does `Array.from({length: 5}, (v, i) => i)` work?
I may be missing something obvious here but could someone breakdown step by step why Array.from({length: 5}, (v, i) => i) returns [0, 1, 2, 3, 4]? https://developer.mozilla.org/en/docs/Web/JavaScript/Reference/Global_Objects/Array/from I didn’t understand in detail why this works Answer When Javascri…
How to compare two Moment.js Objects
I have an Array with Moment.js objects in a variable: And a function to determinate if a value is in this array: But even if i pass a moment object, as checkFeriado(moment(“2016-01-01”)); i’m getting false. Whats wrong with my code? Is there a best way to do this? Entire project have jQuery …
JavaScript – for Loop vs. Array shift
I have two functions, they do look alike but what I don’t really understand is when inside the for-loop, since the input is an array, why doesn’t the array need any index to call the first array? I have an array of… I’m trying to loop through the array with an input. The result of the …