I saw somewhere else said,  x && foo();  ?is equal to  if(x){     foo(); }   I tested it and they really did the same thing. But why? What exactly is x && foo()?...
Is there any meaningful difference between  condition && console.log("this may run");   and  if (condition) console.log("this may run);   If not, which is a best practice?...
Just started my uni course, struggling a little with javascript. I have been asked to display a square using any character, however, the solution must combine for loops and if statements.   This is what I have so far and I feel pretty close but I jus...
I have 2 different directives. The first one is returns an iframe with a live video, and the second returns an iframe with a recent video.  The condition is: if live content is present, append live directive, else append recent video directive.  Ive...
I asked this question, and it turned out that when removing an attribute from an element, checking whether the element exists first using elem.xxx!==undefined makes the runtime faster. Proof.  Why is it quicker? There's more code to go through an...
How do i load my React toolbar component conditionally on state change?  constructor(props) {         super(props);         this.state = {             currentpagenum: 0,         };     }  render(){    return(        <View>            {this.stat...
while executing below loop fails as soon as a advertisement is encountered. Site purposefully put random advertisement. is it possible to handle it with #EANF# not sure how to code it. please help. Something like this.   //if(text=="#EANF#" |...
I'm working on creating a toggle function to 'favorite' an item from a list of many. I've got working script to toggle the item in and out of a user-specific favorites list, communicate that change to a database, and populate the rest...
I have two similar javascripting challenges I am looking to solve in Cognos with the help of conditional formatting.  I would like to be able to show a data item, for only the item that I am comparing other items to in Cognos.  For example, If my cha...

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