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@jokeyrhyme
Last active June 29, 2019 08:38
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JavaScript polling
/**
* @param {Function} condition a function that returns `true` or `false`
* @param {Number} [interval=197] the amount of time to wait between tests
* @param {Function} callback a function to invoke when the condition returns `true`
*/
function waitFor(condition, interval, callback) {
'use strict';
if (condition && condition()) {
callback();
} else {
setTimeout(function () {
waitFor(condition, interval, callback);
}, interval || 197);
}
};
@jokeyrhyme
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when Promises or Events are unavailable, this allows you to safely schedule code for the future

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