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Trying to generate a set of strings such as 'TCP', 'DNS' or 'SQL'
I want to be able to have these strings set and be able to have them appear randomly like you would with random numbers.
You can make an array and select them randomly:
const strings = ['TCP', 'DNS', 'SQL'];
for (var i = 0; i < 5; i++) {
console.log(`Random string: ${strings[Math.floor(Math.random() * strings.length)]}`);
}
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I want to know how we can loop through and add pixel values?
Example,
let testArray = [{width: '150px'}, {width : '150px'}]
So i want to loop through it and have to return total value i.e '300px'
Can someone please help me?
let sumWidth = 0
testArray.forEach((object)=>{
sumWidth+= parseInt(object.width.slice(0,-2))
}
let result = sumWidth.toString() + 'px'
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I'm trying to take an array of integers and cast it to bytes in JavaScript but can't quite figure out how to do it.
The input would look something like [2,-76,7,2,8,69,82,88,87,2,52,50,...].
If I was going to do it in another language like Java I'd use something like the following.
byte[] bytArr = new byte[intArray.size()];
for (int i = 0; i < intArray.size(); i++) {
bytArr[i] = (byte) intArray[i];
}
I'm pretty new to JS so not sure if this is even possible...
You can use Int8Array, which is a typed array.
const arr = Int8Array.from([2,-76,7,2,8,69,82,88,87,2,52,50]);
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var charArray=[a,b,c]
I want to have a new array as following:
var charArrayNew=[a, ab, abc]
Please suggest how to get the result of charArrayNew in ES6 Javascript.
You could do this:
const charArray=['a','b','c'];
const answer = charArray.map((_,i,ar)=>ar.slice(0,i+1).join(""));
console.log(answer);
// or, alternatively:
fn=(ar,res=[])=>(
ar.reduce((a,c)=>(res.push(a+=c),a),""),res );
console.log(fn(charArray))
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I need to create an array from 0 to 60, where numbers will not repeat. Is there a method to do this in React Native?
You can create array with number then randomize them
const generateArr = (n) => {
const arr = []
for(let i = 0; i < n; i++){
arr.push(i)
}
return arr
}
Then you can randomize array with one of the methods described here:
How to randomize (shuffle) a JavaScript array?
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I need for an Plugin an Object structure like this:
{
"Beer":145.53,
"Apple (red)":7.33,
"Apple (green)":0.03
}
Don't know how to write it that this shine.
I got the all values already so how to set it up like this?
Use this notation to make objects with those properties:
var obj = {};
obj["Beer"] = 145;
obj["Apple (red)"] = 7.5;
....