JQuery/Javascript - Loop through all json elements after and including value

Question

It may seem like an odd request, though I am not too good with JQuery/Javascript and there is no documentation on how to do this certain thing a customer needed.

I have this array: ["Value1", "Value2", "Value3","Value4"] and he wants it so that if he clicks on a button to delete e.g. value2, value3 and 4 are also deleted (all elements after) and for html to be changed on each one (so I can not just delete everything after, as html has to be changed in the process too).

I'm familiar with .each but it being used in such a situation seems rather slow and given JQuery's popularity, I would assume there is a better alternative or at least a method of employment of .each than looping through them all and checking their keys.

FastTrack · Accepted Answer · 2013-12-18 21:12:48Z

1

Here is a working jsFiddle: http://jsfiddle.net/aT3X8/1/

Given:

var arrMyArray = ["Value1", "Value2", "Value3","Value4"];

First, get the index of the item the user is deleting. Say the user deletes the 2nd item (or whichever item is deleted will need to be passed into the indexOf in place of Value3 so that we can get it's index:

var intIndex = arrMyArray.indexOf("Value2");

Now, loop thru the array, starting at the element they chose to delete:

for(i = intIndex; i < arrMyArray.length; i++){
    alert("I'm on item: " + arrMyArray[i]);
}

answered Dec 18, 2013 at 21:12

FastTrack

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