In javascript how to convert sequence of numbers in an array to range of numbers?  eg. [2,3,4,5,10,18,19,20] to [2-5,10,18-20]...
Some events in JavaScript fire before others. For example, with an input element, the keydown and keypress events fire first. Then, if the return value from those was not false, the input.value is updated. Then, the keyup event fires.  Is there a web...
Please help me explain why log result is different in 2 ways:  Way 1: Log sequentially every 1 second  Way 2: After 1 second all elements are logged.  // Way 1 let sequence = Promise.resolve(); [1,2,3,4].forEach((val)=> {     sequence = sequence.t...
Hi I have to find a missing number in an xml file. but I feel difficulty to find. Pls suggest some ideas.    Example  A file contains an <a> tag which include id i.e page-1,2... I need to find the missing numbers using jquery.  a.xml    <p&g...
I have followed this tutorial and come up with that code:  context = new AudioContext(); play(frequency) {     const o = this.context.createOscillator();     const g = this.context.createGain();     o.connect(g);     g.connect(this.context.destinatio...
I am trying to figure out how to find the first missing number of a sequence of numbers like this (1,2,3,5,6,9,10,15)  I want to put the first missing number, #4, into an variable for later use but don't know how to do so?  I have tried this but...
here's the snippet of my code :  <ul>     <li><a href="home">Home</a></li>     <li><a href="links">Links</a></li>     <li><a href="contact">Contact</a>...
My head isn't quite with me and hope somebody can assist...  Let's say I have:  1234567   I wish to generate a list of all possible combinations, the only restrictions are that:   A number can only appear once A higher number can't come b...
I have to write a lab that counts the longest sequence of heads and tails in 10,000 coin flips. I can't seem to figure out how to do this. Hints?...
I'm an jQuery noob and I'm wondering how fix this issue:   I have an external .js script, let's take reflection.js as example. Reflection.js creates canvas reflection for every class="reflect" image. I'm appending a few images...

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