src/concat.js
function allocate(height, length) {
	var node = new Array(length);
	node.height = height;
	if (height > 0) {
		node.sizes = new Array(length);
	}
	return node;
}
function allocate(height, length) {
	var node = new Array(length);
	node.height = height;
	if (height > 0) {
		node.sizes = new Array(length);
	}
	return node;
}
function allocate ( height , length ) { var node = new Array ( length ) ; node . height = height ; if ( height > 0 ) { node . sizes = new Array ( length ) ; } return node ; }
Creates a node or leaf with a given length at their arrays for performance. Is only used by shuffle.
Creates a node or leaf with a given length at their arrays for performance . Is only used by shuffle .