JavaScript’s with statement

JavaScript’s with statement was intended to provide a shorthand for writing recurring accesses to objects. So instead of writing

uuu.eee.oo.ah_ah.ting.tang.rehrr.tett.bing = true;
uuu.eee.oo.ah_ah.ting.tang.rehrr.tett.bang = true;

You can write

with (ooo.eee.oo.ah_ah.ting.tang.walla.walla) {
bing = true;
bang = true;
}