how often did jesus get angry in his life?

Maybe 3 or 4 times in scripture



When Jesus cleared the temple of the moneychangers and animal-sellers, He showed great emotion and anger (Matthew 21:12-13; Mark 11:15-18; John 2:13-22). Jesus’ emotion was described as “zeal” for God’s house (John 2:17). His anger was pure and completely justified because at its root was concern for God’s holiness and worship. Because these were at stake, Jesus took quick and decisive action. Another time Jesus showed anger was in the synagogue of Capernaum. When the Pharisees refused to answer Jesus’ questions, “He looked around at them in anger, deeply distressed at their stubborn hearts” (Mark 3:5).

Many times, we think of anger as a selfish, destructive emotion that we should eradicate from our lives altogether. However, the fact that Jesus did sometimes become angry indicates that anger itself, as an emotion, is amoral. This is borne out elsewhere in the New Testament. Ephesians 4:26 instructs us “in your anger do not sin” and not to let the sun go down on our anger. The command is not to “avoid anger” (or suppress it or ignore it) but to deal with it properly, in a timely manner. We note the following facts about Jesus’ displays of anger:

1) His anger had the proper motivation. In other words, He was angry for the right reasons. Jesus’ anger did not arise from petty arguments or personal slights against Him. There was no selfishness involved.

2) His anger had the proper focus. He was not angry at God or at the “weaknesses” of others. His anger targeted sinful behavior and true injustice.

3) His anger had the proper supplement. Mark 3:5 says that His anger was attended by grief over the Pharisees’ lack of faith. Jesus’ anger stemmed from love for the Pharisees and concern for their spiritual condition. It had nothing to do with hatred or ill will.

4) His anger had the proper control. Jesus was never out of control, even in His wrath. The temple leaders did not like His cleansing of the temple (Luke 19:47), but He had done nothing sinful. He controlled His emotions; His emotions did not control Him.

5) His anger had the proper duration. He did not allow His anger to turn into bitterness; He did not hold grudges. He dealt with each situation properly, and He handled anger in good time.

6) His anger had the proper result. Jesus’ anger had the inevitable consequence of godly action. Jesus’ anger, as with all His emotions, was held in check by the Word of God; thus, Jesus’ response was always to accomplish God’s will.

When we get angry, too often we have improper control or an improper focus. We fail in one or more of the above points. This is the wrath of man, of which we are told “Everyone should be quick to listen, slow to speak and slow to become angry, for man’s anger does not bring about the righteous life that God desires” (James 1:19-20). Jesus did not exhibit man’s anger, but the righteous indignation of God.

Recommended Resource: God the Son Incarnate: The Doctrine of Christ by Stephen Wellum

Pacifism for evil is no virtue. Activism for righteousness is no vice.  

The Bible says He was "a man like us in all things but sin", which means He had normal human emotions, including anger, frustration, fear, worry, etc.

I recall two times in the Bible, once with the money changers in the temple, and another time when a fig tree wasn't producing figs, despite it not being the season to produce figs.
 
That first one makes sense, the second, not so much,

 As a man, Jesus was neither critical nor hard to please. Yet, there is much happening on the earth today that must fill him with righteous anger. He is certainly angry at all those religious organizations that falsely claim to represent him. He foretold as much: “Not everyone saying to me, ‘Lord, Lord,’ will enter into the kingdom of the heavens, but the one doing the will of my Father who is in the heavens will. Many will say to me in that day, ‘Lord, Lord, did we not . . . perform many powerful works in your name?’ And yet then I will confess to them: I never knew you! Get away from me, you workers of lawlessness.”​—Matthew 7:21-23.

"You have heard how it was said to our ancestors, You shall not kill; and if anyone does kill he must answer for it before the court. .But I say this to you, anyone who is angry with a brother will answer for it before the court; anyone who calls a brother "Fool" will answer for it before the Sanhedrin; and anyone who calls him "Traitor" will answer for it in hell fire."
Matthew, 5: 21-22

Never and nothing.  jesus is a fictional character.  there is no historical evidence that he ever existed and the bible is not historical.  It is a fictional book set in historical times

What does the Bible say about anger? Read this article: https://www.jw.org/finder?wtlocale=E&docid=502018140&srcid=share

Unknown.  In scripture, we have this:

Mark 3:5 He looked around at them in anger and, deeply distressed at their stubborn hearts, said to the man, “Stretch out your hand.” He stretched it out, and his hand was completely restored.

Then there were the two times he chased out money-changers in the temple; he was probably angry then.

You don't want to be angry where you're thinking about killing someone (Mt 5:21-22), but a certain amount of anger over a limited time is okay as long as it doesn't cause you to sin.

Ephesians 4:26 “In your anger do not sin”: Do not let the sun go down while you are still angry,

Typically we consider those who make us angry at them "enemies".  Here's some pointers on how to deal with them.

Rom 12:17 Do not repay anyone evil for evil. Be careful to do what is right in the eyes of everyone. 18 If it is possible, as far as it depends on you, live at peace with everyone. 19 Do not take revenge, my dear friends, but leave room for God’s wrath, for it is written: “It is mine to avenge; I will repay,” says the Lord. 20 On the contrary:“If your enemy is hungry, feed him;    if he is thirsty, give him something to drink.In doing this, you will heap burning coals on his head.”21 Do not be overcome by evil, but overcome evil with good.

Plenty of times. When he destroyed the Earth, when he destroyed Sodom and Gomorrah, when he killed Nadab and Abihu, when he killed Onan, when he burned 250 people to death, and many wars that he assisted.