The Gunners secured an emphatic victory over the Magpies to move level on points with Southampton in the table ahead of the meeting with Liverpool at Anfield on December 21
Frenchman Giroud this week came out in defence of his under-fire manager, who was on the receiving end of public vitriol from the club's fans in the wake of their 3-2 loss to Stoke City last weekend.
|VIEW FROM EMIRATES STADIUM
|By Greg Stobart
‘One Arsene Wenger’ sang the Arsenal supporters as they watched their side cruise to victory.
Crisis officially over? The Gunners have won five of their last six matches in all competitions and played with total confidence from the first whistle.
That was shown in their finishing. Olivier Giroud and Santi Cazorla struck the goals for the hosts with flicks, chips and thumping headers.
In truth, they were hardly tested by a tame Newcastle side that never tested Mathieu Debuchy as he made his first ever appearance as a central defender.
Ayoze Perez grabbed a goal for the visitors but it made no difference as they failed to cope with the Gunners’ swift attacking movement.
And while the fans here are hardly screaming for Wenger to sign a new three-year contract, it is a win that eases the pressure. For now.
Newcastle went into the match having lost just one of their last 10 in all competitions but they rarely looked like extending that run at the Emirates Stadium.
Giroud opened the scoring in the 15th minute with a precise header, before Spain midfielder Cazorla - celebrating his 30th birthday - doubled the advantage nine minutes after half-time.
Former Montpellier man Giroud effectively made the game safe four minutes later by turning home Hector Bellerin's low cross, rendering Ayoze Perez's 63rd-minute effort nothing more than a consolation.
Cazorla then added a fourth from the penalty spot with two minutes left as Arsenal moved to within two points of the top four.
Aside from the response to some Arsenal fans' public lambasting of their boss after that Stoke clash, the build-up had been dominated by Wenger's decision to deploy former Newcastle right-back Mathieu Debuchy in central defence following an injury crisis.
But it was the France international's centre-back partner, Per Mertesacker, who went close to opening the scoring in the eighth minute. His header from Cazorla's corner cannoned off the crossbar with Jak Alnwick well beaten.
Third-choice goalkeeper Alnwick was making his first start for Newcastle having come on for the injured Rob Elliot in last weekend's 2-1 win over Chelsea and, just seven minutes after Mertesacker's chance, the 21-year-old was picking the ball out of the net.
Giroud rose highest to meet Alexis Sanchez's cross and power the ball home with a well-directed header.
Arsenal were controversially denied a second by referee Lee Mason shortly afterwards. Danny Welbeck cut in from the left and cleverly lofted the ball over Alnwick, but Mason ruled that the former Manchester United striker had fouled Daryl Janmaat in the build-up.
Welbeck then volleyed wide from Alexis' superb chipped pass before appearing to handle the ball in the area at the other end.
Newcastle's claims for a penalty were dismissed, but the visitors would still have levelled in the 34th minute had it not been for a fine double save from Wojciech Szczesny to deny Yoan Gouffran and Papiss Cisse.
Yet Arsenal's indignation at that decision was shortlived, Cazorla latching on to Alexis' pass to exquisitely lift the ball over a sliding Fabricio Coloccini before firing past Alnwick at his right-hand post.
Newcastle's defence, depleted by the suspension of centre-half Steven Taylor, struggled to live with the creativity and speed of the Arsenal attack, which was rewarded again when Giroud flicked in Bellerin's low ball across the face of goal.
A rout looked to be on at that point, only for Perez to glance home Colback's free-kick and give Newcastle a glimmer of hope with his fourth goal of the season after 63 minutes.
However, Arsenal were ultimately comfortable in seeing the game out, with the home fans serenading Wenger with supportive chants before Cazorla's delicately chipped spot-kick wrapped up the points after Dummett had clumsily felled Welbeck.