Info :
The Yellow Slime color is well.. Yellow. This babies are strong and large than his other cave slime buddies, which he places 2nd place for size. These are your second worse nightmare than the Red Slime due to their defense and damage. This is basically the cavern's purple slime.
Spawns :
Their spawns are underground-caverns.

These are the stats to the Yellow Slime
Classic/Normal Difficulty :
Health : 45
Damage : 15
Defense : 7

Expert Difficulty :
Damage : 30 > 54(HM) > 80 (P-Plantera)
Health : 90 > 198 (HM) > 296 (P-Plantera)
Defense : 7 > 15(HM) > 21 (P-Plantera)

Master Difficulty :
Damage : 45 > 81(HM) > 120 (P-Plantera)
Health: 135 > 297(HM) > 444 (P-Plantera)
Defense : (Same Stats as Expert)

(Info was gotten from the Terraria Wiki)
(HM= Hardmode)

Bow and arrows :
Frostburn/Fire Arrows
Ebonwood/Shadwood bow

Swords :
Tin - Iron

(which ever magic or summon)

Predict the time and where the slime will leap to, if you know the time and where it'll leap, You might be able to knock the slime back before it hits you or trick it. If you're going to kill the slime with melee, predict when it'll leap, so you could dodge or counter the attack. If you're ranged, predicting when and where it'll jump is needed, since if u mess up where and when it'll jump, you're going to end up missing. Summons don't need skill, just let the summon attack. Mage might need to predict where and when it'll jump.

Just kill it.. Use what I just said in Tactics and simply just kill it, all I have to say.