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      Loops Component
      • 13 Feb 2023
      • 1 Minute to read
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      Contents

      Loops Component

      • Updated on 13 Feb 2023
      • 1 Minute to read
      • Contributors
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      Article Summary

      The Loops component is primarily used to perform operations repeatedly in the form of iterations.

      While Block

      The While statement loops through a block of code as long as a specified condition is true. The do while loop is a variant of the while loop. This loop will execute the code block once, before checking if the condition is true, then it will repeat the loop as long as the condition is true.

      InputOutputBlock LayoutGenerated Code

      Choose the repeater type (while or until),

      Boolean (True or False),

      The repeater statement.


      For while repeater, it will execute the statement until it becomes false. 

      For until repeater, it will execute the statement until it becomes true.


      		 
      while (false) {

}

while (!false) {

}

      For Block

      The For loop loops through a block of code a number of times.

      InputOutputBlock LayoutGenerated Code

      Variable or number for: (from)input-1,(to)input-2, and (by)input-3

      Any code block within "do" statement


      For the count repeater, it will execute the given statement block based on "from-to" input values and the step(by) value. 

      We can have high to low or low to high.



      		  
      var i;


function er_3eff8d47_6dd5_4f07_92d0_fd3d291010bd_onPageShow(e,obj,index){
   for (i = 1; i <= 10; i++) {
  }

}

      Table variable(array) in list,
      Any code block within "do" statement
      		In for each repeater, it will execute till the given list length. It will also give each list value to a variable.




      var j;


function er_3eff8d47_6dd5_4f07_92d0_fd3d291010bd_onPageShow(e,obj,index){
   var j_list = [];
  for (var j_index in j_list) {
    j = j_list[j_index];
  }

}

      Repeater Block

      The Repeater block is used to execute the "do" statement block for a selective number of times. They can be used within the For and While loops.

      InputOutputBlock LayoutGenerated Code

      Variable or Number

      The repeater statement.


      		The repeater will execute the given statement for a fixed number of times.Repeater
      async function er_1673435223_click(e,obj,index){
   for (var count = 0; count < 10; count++) {
  }

}

      Break or Continue Block

      The Break statement is used to jump out of a loop. It can be used within any of the loops. (Mostly Break and Continue statements are used within While Loops)

      The Continue statement breaks one iteration (in the loop), if a specified condition occurs, and continues with the next iteration in the loop. 

      InputOutputBlock LayoutGenerated Code
      NAIt will break out of the repeater or continue to the next iteration.


      for (i = 10; i >= 1; i--) {

  break;

}

for (i = 10; i >= 1; i--) {

  continue;

}

       

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