how to extract an array from a string in javascript-CodePudding

i have a string which contains array in it and bracket , i want to extract data from it .

    let vr = "- [Next.js Documentation](https://nextjs.org/docs) - learn about Next.js features and API."

how can i dynamically identify if an array is present in this string , like take [Next.js Documentation] since it is an array. Please help me on this issue

CodePudding user response：

You can use regex with javascript's String.prototype.match().

The regex pattern to match anything enclosed by brackets is /\[(.*?)\]/gm. You can check here.

Good luck!

CodePudding user response：

let vr = "- [Next.js Documentation](https://nextjs.org/docs) - learn about Next.js features and API."
const regex = /\[([^\]] )\]\(([^)] )\)/g;
let match;
let result = [];
while ((match = regex.exec(vr)) !== null) {
  result.push(match[1]);
}
console.log(result);

CodePudding user response：

let vr = "- [Next.js Documentation](https://nextjs.org/docs) - learn about Next.js features and API."

const re = /\[([^]*?)]/g;
let match = re.exec(vr);
if (match !== null) {
    console.log(match[1]);
} else {
    // not matched
}