In mql4 how to you clear a multi-dimensional array?

External question — Stack Overflow Stack Exchange Author: rerat Original post: https://stackoverflow.com/questions/75703578 License: CC BY-SA 4.0 — https://creativecommons.org/licenses/by-sa/4.0/ Adaptation: HTML converted to plain text; contact email addresses removed. string trade_data = [0][4]; ArrayResize(order_data, 2); order_data[0][0] = "a"; order_data[0][1] = "b"; order_data[0][2] = "c"; order_data[0][3] = "d"; order_data[1][0] = "e"; order_data[1][1] = "f"; order_data[1][2] = "g"; order_data[1][3] = "h"; Now if I want to clear the 2 indexes in this 2D array, how do I do it. I tried: ArrayInitialize(order_data, EMPTY_VALUE) But it gives me this error: 'ArrayInitialize' - no one of the overloads can be applied to the function call I just want to clear the array on each For loop iteration.

External answer — Stack Overflow Stack Exchange Author: Yasin İPEK Original post: https://stackoverflow.com/a/75756717 License: CC BY-SA 4.0 — https://creativecommons.org/licenses/by-sa/4.0/ Adaptation: HTML converted to plain text; contact email addresses removed. string order_data[2][4]; order_data[0][0] = "a"; order_data[0][1] = "b"; order_data[0][2] = "c"; order_data[0][3] = "d"; order_data[1][0] = "e"; order_data[1][1] = "f"; order_data[1][2] = "g"; order_data[1][3] = "h"; ArrayResize(order_data,3); order_data[0][0] = "a"; order_data[0][1] = "b"; order_data[0][2] = "c"; order_data[0][3] = "d"; order_data[1][0] = "e"; order_data[1][1] = "f"; order_data[1][2] = "g"; order_data[1][3] = "h"; order_data[2][0] = "j"; order_data[2][1] = "k"; order_data[2][2] = "l"; order_data[2][3] = "m"; //ArrayInitialize(order_data,EMPTY_VALUE); for(int i=0; i<3; i++) { for(int j=0; j<4; j++) { order_data[i][j]=""; } } You cannot enter a string value in the ArrayInitialize method. Here are the values you can enter: char,short,int,long,float,double,bool,uint