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do-if-jquery.js
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| const detectJQuery = () => typeof jQuery !== 'undefined' | |
| doIf(detectJQuery, main, 1000) | |
| function main() { | |
| jQuery(($) => { | |
| // jQuery detected | |
| }) | |
| } | |
| function doIf(predicate, callback, timeOut) { | |
| setTimeout(() => { | |
| if (predicate()) { | |
| callback() | |
| } | |
| else { | |
| doIf(predicate, callback); | |
| } | |
| }, timeOut) | |
| } |
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