I have some markdown content. For example:
let text = `This is line one,
This is para 2
**This is title 1**
This is para 3
**This is title 2**
This is para 4`
What I need to do is add a string like inbetween this markdown, after the 4th line break. So, it should appear after Title 1, and the new markdown should look as follows:
`This is line one,
This is para 2
**This is title 1**
<Ad />
This is para 3
**This is title 2**
This is para 4`
The problem is that I don't know how to look for line breaks in javascript.
How can I do this in javascript? The result should still be valid markdown.
You could split the string by line breaks.
Then loop through the elements in the array, and then add the text after the nth element.
let text = `This is line one,
This is para 2
**This is title 1**
This is para 3
**This is title 2**
This is para 4`;
let split = text.split(/\n/g).filter(function(el) {
return el;
})
let newString = '';
split.forEach(function(value, key) {
if (key == 3) {
newString += value + '\n\n' + '<Ad />\n\n';
} else {
newString += value + '\n\n';
}
});
console.log(newString)This snippet allows you to insert some insert string immediately after the line (only non-blank lines are considered) specified by insertAfter index. Without looping.
const input = `This is line one,
This is para 2
**This is title 1**
This is para 3
**This is title 2**
This is para 4`;
const insert = '\n\n<Ad />';
const insertAfter = 3;
const match = input.matchAll(/\S\n/g);
const position = Array.from(match)[insertAfter].index + 1;
const output = [input.slice(0, position), insert, input.slice(position)].join('');
console.log(output);