JS how to insert “mytext” into a string at random places...

Question

Let’s say text to be inserted is this “mytext”
var tbi = “mytext”

And then the string is this:
var str = “this is the main text..bla bla”

Now, insert tbi (“mytext”) into str at random places.

Example:
—> “this is the main text.. bla bla”
to
—> “thims is tyhe mteain text.. blax btla”

So far I got it to insert the text every n characters, but I couldn’t do it I’m random.
So, I thought I might ask for your help:

https://code.sololearn.com/WGEs1980SV99/?ref=app

Answer 1

First, take a random number between 0 and text.length:

const i = Math.floor(Math.random() * text.length);

Next, slice your text into two parts, at position i:

const left = text.slice(0, i);
const right = text.slice(i + 1);

Then put it back together.

text = left + char + right;

Of course you want to do all this in a loop..

for(const char of mytext.split("")) {
...
}

Answer 2

or use splice, its basicly same as Schindlabua's answer ( slice1 + chr + slice2 ). but the operation were done in array.

cost txtArr = txt.split();
const i = Math.floor(Math.random() * txt.length);
txtArr.splice(i, 0, chr);
txt = txtArr.join('')

another downside is you'll need polyfill for it to work in older browser

Answer 3

1. Get the length of insert text, 'mytext', n
2. Get the length of str, m
3. Get n numbers of unique random numbers from 0 to m+1, randomArr
4. Sort randomArr in ascending order, sortedRandArr
5. Insert n characters into m string, according to sortedRandArr positions, output
6. You got the result output!

Build these 5 functions for getting the result.

Ginfio Show these functions to us once you've done.

Answer 4

Calviղ did 1 - 3.
I’m don’t know how to do the #4. ascending order.

https://code.sololearn.com/WGEs1980SV99/?ref=app