I have just started to learn javascript today and i'm trying to work out how i can convert seconds to milliseconds.
I tried to find something that would help me but everything i find is converting milliseconds to minutes or hours.
let str = 'You must wait 140 seconds before changing hands';
let timer = 0;
let num = str.match(/\d/g).join("");
timer = num;
console.log(timer);
setTimeout(() => {
console.log('time done')
}, timer);I'm trying to extract the numbers from string and convert it to milliseconds for a setTimeout.
/(\d+) seconds?/ - the ? means the s is optionallet str = 'You must wait 140 seconds before changing hands';
let timer = str.match(/(\d+) seconds?/)[1]*1000; // grab the captured number and multiply by 1000
console.log(timer)
setTimeout(() => {
console.log('time done')
}, timer);Here is a countdown
let str = 'You must wait 10 seconds before changing hands';
const span = document.getElementById("timer");
let tId = setInterval(() => {
let timeLeft = +str.match(/(\d+) seconds?/)[1]; // optional s on seconds
if (timeLeft <= 1) {
str = "Time's up";
clearInterval(tId);
}
else str = str.replace(/\d+ seconds?/,`${--timeLeft} second${timeLeft == 1 ? "" : "s"}`)
span.innerHTML = str;
}, 1000);<span id="timer"></span>let str = 'You must wait 140 seconds before changing hands';
let seconds = /\d+/.exec(str)[0];
// milliseconds = seconds * 1000;
const ms = seconds * 1000;
setTimeout(
() => {// doSomething},
ms
);
``