const regex = /[^@]{0,1}(@[a-zA-z\d]+)/gm;
// Alternative syntax using RegExp constructor
// const regex = new RegExp('[^@]{0,1}(@[a-zA-z\\d]+)', 'gm')
const str = `@test1 стоп, не так все
@test1 не знаю даже @test1 тест@test1привет @@test1р
Привет, ребят @test2 как дела? @test1 @test2@test1
@test1п`;
// Reset `lastIndex` if this regex is defined globally
// regex.lastIndex = 0;
let m;
while ((m = regex.exec(str)) !== null) {
// This is necessary to avoid infinite loops with zero-width matches
if (m.index === regex.lastIndex) {
regex.lastIndex++;
}
// The result can be accessed through the `m`-variable.
m.forEach((match, groupIndex) => {
console.log(`Found match, group ${groupIndex}: ${match}`);
});
}
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for JavaScript, please visit: https://developer.mozilla.org/en/docs/Web/JavaScript/Guide/Regular_Expressions