Straight Tips: 2024

Saturday, November 16, 2024

[JavaScript] Wait Return Value from Async Functions

<!DOCTYPE html>


<script>

Start();

async function Start() {    //_____________________________

    //"async" above is a must for "await" below to work, otherwise, error!

var x = 3;

var r = await Calculate();

    //"await" - The code below will be executed only after "Calculate()" returns a value

alert(x + r);

}

function Calculate() {    //_____________________________


    //"Calculate" is an async function because it returns a promise


    return new Promise((resolve) => {

    setTimeout(() => {resolve(2 + 3);}, 2000);    //2000 milliseconds = 2 Seconds

    });

}

</script>

Friday, November 15, 2024

[JavaScript] Wait Sleep() Function

Test code below (Click here)

<!DOCTYPE html>


<script>

Start();

async function Start() {    //_____________________________

    //"async" above is a must for "await" below to work, otherwise, error!

await Sleep(2000);    //1000 millisecond = 1 Second

    //"await" - The code below will be executed only after "Sleep()" returns

alert("Start Function Call End");

}

function Sleep(Time) {    //_____________________________

    return new Promise((resolve) => {

    setTimeout(() => {resolve("Sleep End");}, Time);    //1000 millisecond = 1 Second

    });

}

</script>

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Saturday, November 16, 2024

[JavaScript] Wait Return Value from Async Functions

Friday, November 15, 2024

[JavaScript] Wait Sleep() Function

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