Wait For Expression¶

Tests an expression every 200ms until true of 5000ms has passed. Runs a callback on Success and End.

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Parameters¶

Function - expression¶

a function that will be evaluated every tick, stops the process if true

Function - onSuccess¶

A function that is called on success

int - options.intervalTime¶

How often to check the expression in ms. Defaults to 200ms.

int - options.maxWaitTime¶

The maximum time to check for before expiring. Defaults to 5000ms.

Function - options.onEnd¶

Callback function ran if timer expires. Defaults to logging a warning to the console.

Return Value¶

undefined

Example Usage¶

import waitForExpression from '@mvps-genesis/wait-for-expression';

let myVar = false;

waitForExpression(
    () => myVar == true,
    () => alert( 'Success!' )
)