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How to delete all elements in an Array that I added using push() method?

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Last Modified: 2013-11-12
Dear Experts,
I have an array that I added elements using push() method, I have tried to use splice, pop and shift methods, it didn't work and it keep poping an error,
TypeError: Error #1006: value is not a function. at Equation_Ad_fla::MainTimeline/clearData()

I need to delete all elements ( empty the array ) and then add again with the same function below,
thanks




function cordsData(e:MouseEvent) {
 
		dispx=Number(gGraph.board.getCordx());
		dispy=Number(gGraph.board.getCordy());
		arrX.push(dispx);
		arrY.push(dispy);
		//for (i=0 ; i<arrX.length ; i++){
			
		myDataGrid.addItem({xCol:arrX[i].toFixed(digitX),yCol:arrY[i].toFixed(digitY)});
		
		i++;
}

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