Linear Variable Array Insertion

## Linear Variable Array Insertion

![](/media/202601/35937c11-7949-4d22-ae8a-c65219a7befd_1768641741.png)

## Module Principle
Insert corresponding type data into the specified position of the array type Linear variable. For example: an integer array can insert an integer. When the insertion direction is forward and the insertion index is 1, it appends to the head of the array; when the insertion direction is forward and the insertion index is greater than the length of the array to be inserted (Linear variable), it appends to the tail of the array. When the insertion position is reverse and the insertion index is 1, it appends to the tail of the array; when the insertion direction is reverse and the insertion index is greater than the length of the array to be inserted (Linear variable), it appends to the head of the array.

## Usage Scenarios
Generally used to append data contained in container type modules such as Condition Detection (if) and Loop Detection (for) to an array.

## Usage Method
Prerequisite: There is a flow containing a Linear Variable Creation module of array type.
1. Function Addition Tree &rArr; Auxiliary Tools &rArr; Variable Processing &rArr; Linear Variable Array Insertion Module, drag or double-click to add to the specified position in the flow.
2. Set the index direction and insertion index to be inserted into the array.
3. Add the Linear variable to be set and the set value connected to the output port of the module above.

### Pre/Post-Sequence Modules
There must be a Linear Variable Creation module containing an array type above the module.

## Parameter Configuration Description

![](/media/202601/d09dc751-6751-4f59-860e-886cc11d27c4_1768641989.png)
1. Index Direction: Supports forward and reverse, default is forward.
2. Insertion Index: Combine index direction and insertion index to determine the position to insert into the array. After clicking the subscribe button, the insertion index row is displayed in the table, and you can connect to the output port of the module above.

Port Name in Table: Double-click to modify the name of the corresponding output port.
Data Source in Table: Click to pop up the Linear variable menu, select the array of the Linear variable to be inserted.
Insertion Data Source in Table: Click to pop up the menu of the output port of the corresponding data type, select the value to be inserted.
Current Value in Table: Display the current value after insertion.
Table operations include the following:
1. Plus sign: Click to add the input port for setting the Linear variable and the input port for setting the value.
2. Minus sign: Click to delete the selected input port for setting the Linear variable and input port for setting the value.
3. Clear: Click to clear all added input ports for setting the Linear variable and input ports for setting the value.

## Output Description

![](/media/202601/cd81a7a0-7d79-476e-b3a4-ac4eba5ae401_1768641997.png)
1. Run Result: If the value at the specified position of the Linear variable array is set successfully, return true, otherwise return false.
2. The value of the array type Linear variable after inserting the value.

## Precautions

---

Click here to jump to the corresponding Chinese manual page: [Linear Variable Array Insertion](/doc/216)