Angular can't bind to variable [closed] - javascript

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I have this declared in my class:
somePair: KVPair;
Where KVPair is just a key value pair JSON.
Then in my displayFN I set it like so:
displayFn(pair: KVPair) {
this.somePair = pair;
}
But when I console.log(somePair) outside of displayFn, it's undefined, and I'm not sure why.


I was trying to set it with a [displayWith] which was clearing somePair.
When I set it in (optionSelected)="someFunction($event.option.value)", the value stuck around.

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if there is a class named X which contains method with parameter (X m) thef the funcn what does the parameter say? [closed]

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eg:
class X
{
void accept()-accepts a string
void update(X m)-compares string m and current object
so I'm not able to understand what we have to do in the update method
so that was my query.pls help me with it

How to get every element in an array in an if statement js [closed]

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So I’m trying to check names through an array and I don’t want to have to use
if (<array name>[0,1,2,3,4,5,6,7])
{ code in here }

depend on what you are trying to do u can use forEach or map
let arr = [1,2,3,4,5,6,7,8,9,10];
arr.forEach((item)=>{
console.log(`${item} is greater than 5 : ${item>5}`)
})

How to Display each variable of for loop in a div tag using javascript? [closed]

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How to Display each variable of for loop in a div tag using javascript? Using innerHTML i am only able to display the last variable of for loop

You can do as follows, but it is better to use lists.
Lists: https://developer.mozilla.org/pt-BR/docs/Web/HTML/Element/ul
const myDreams = ["Fly", "Be rich", "Go to the moon"];
const myDreamsDiv = document.querySelector("#myDreams");
//The secret here is to add a breakline(<br>) between each word.
myDreams.forEach(dream => myDreamsDiv.innerHTML += (dream + "<br>"));
<div id="myDreams"></div>

javascript regex to get the content of a string [closed]

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I have a string
var str="[a54hy 8:45pm],[f57gh 9:20]"
i need to get
[f57gh 9:20pm]
I don't want to use split since the string length can be anything

This worked for me. where id is f57gh
var re='\\['+id + '([a-z0-9: ]+)\\]';
var rematch=RegExp(re,'g');
var mydata=str.match(rematch);
alert(mydata); //[f57gh 9:11am]

JavaScript compare two time variables [closed]

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I have d1 and d2 set in hour:minute:seconds format... How can I compare two time variables and if first is greater execute the function.
In short.
if(d1>d2)
{
//run function
}

Look this
Date.parse('01/01/2011 10:20:45') > Date.parse('01/01/2011 5:10:10')

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