The Blues came into Tuesday night’s game with New Jersey with a five-game winning streak, but it was hardly an easy one.

The previous two wins were in shootouts and another was in overtime. Only one of the wins, a 2-0 victory over Anaheim, was by more than a goal.

So there’s a fine line for the Blues now, especially in a time without Paul Stastny and T.J. Oshie. Offense has been at a premium, especially offense that doesn’t involve Vladimir Tarasenko, who came into the game having scored six of the team’s past 11 goals and assisted on two of the others.

It turns out that right now, what the Blues need is Tarasenko and whoever is playing goal that night. Tarasenko scored again Tuesday, and Jake Allen followed up his shutout against Anaheim last week with another as the Blues beat the Devils 1-0 at the Prudential Center to snag four points in their two days in the New York area and run their winning streak to six games.

“That’s the story with us,” Blues coach Ken Hitchcock said. “We’re starting to get healthier, we’ve probably got 70 percent energy from where we were at before. We really needed the goalies the past 10 days because they needed to be the story with the shape we’re in. They’ve been the story of the team so far for me. Them and Vlady.”

It inevitably seems to come back to Tarasenko. With 15:05 to go in the third period, Tarasenko scored his eighth goal of the season and his seventh in eight days. He and Jori Lehtera worked the puck back and forth in a play the two had used when they were in the KHL, Lehtera behind the goal line, Tarasenko along the boards. Finally Tarasenko skated in from the right faceoff dot and fired a wrist shot past New Jersey’s Cory Schneider for a goal.

“That’s a goal-scorer’s goal because he knew exactly where the goaltender was,” Hitchcock said. “He put it in the area you can’t really move on.”

“He’s got a hot stick right now,” Allen said. “He’s just proven how good a player he is. He’s been leading the team the past few games. I hope he can keep it up. He’s got one of the best shots I’ve ever seen.”

Tarasenko was frustrated by his start. He had five chances in the first period and didn’t score on any of them, with only two shots going on goal.

“There was a lot of chances,” he said. “I need to watch it on my iPad and think about why I can’t score and what I did wrong. I was probably a little nervous and a little not ready for the game. But I’m happy it came in the third period and we won the game.”

The Tarasenko fireworks started last Tuesday in Dallas with a hat trick, then two against Colorado, then one against the Rangers (plus the goal that won the shootout). Tarasenko has a well-schooled level of humility, as evidenced by his frustrations despite his prodigious output, but it’s starting to get tough. He said he had a streak like this once before, when he was playing in Russia and had 10 goals in 15 games, but nothing like it since he came to the NHL. “I’ll try to keep it going,” he said.