select conv(floor(999999999*(1+rand())), 20, 36)
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$(".class").not("#id").slideUp();
$(".class").filter(function(){
return this.value == this.offsetHeight;
}).slideUp();
$(".class:hidden").slideUp();
gulp.task("sequence", gulp.series(
"firstTask",
gulp.parallel("taskA", "taskB"),
"secondTask",
"thirdTask",
function fourthTask() {
// do stuff
}
));