How can I get the number of characters in a line in a template literal?-CodePudding

I have a multi-line template literal. I want to splice it based on line number and character index in the line. For that, I need the number of characters in a given line. How can I get this number?

As for what I have tried, well, I pretty much only put random numbers into slice() to see how much it slices.

Thanks.

CodePudding user response：

let text =
  `The quick
brown fox
jumps over
the lazy dog`;
let res = text.split('\n');
res.forEach((element, index)=>{
  console.log(`Line no:${index 1}   ${element}     length: ${element.length}`);
})

CodePudding user response：

split() on \n to get each line. filter() on True value to remove the empty indexes.

Now you can use .length on the desired index to get the length of that line:

const templateLiteral = `
Hello
FooBar
Something else on this line
123456789
`;

const lines = templateLiteral.split("\n").filter(v => v);

for (let i in lines) {
    console.log(`Line ${ i   1} has: ${lines[i].length} chars`);
}