Cannot read property call of undefined at Blockly.Generator.blockToCode

Question

I am trying to add a custom text block. But when i enter any text in the input field, the error comes up. "Uncaught TypeError: Cannot read property 'call' of undefined"

Blockly.Blocks['text_input']={
init:function()
 {
 this.appendDummyInput()
 .appendField('Text Input:')
 .appendField(new Blockly.FieldTextInput(''),'INPUT');   
 this.setColour(170);
 this.setOutput(true);    
 }  
};

Have you solved this issue? – Yash Kochar Feb 13 '18 at 13:01 — Yash Kochar, Feb 13 '18 at 13:01

score 0 · Answer 1 · answered Mar 31 '17 at 12:51

0

this happens when the language definition for your custom type is missing.

// Replace "JavaScript" with the language you use.
Blockly.JavaScript['text_input'] = function(block) {
  var value = Blockly.JSON.valueToCode(block, 'INPUT', Blockly.JavaScript.ORDER_NONE);

  // do something useful here
  var code = 'var x= "bananas"';
  return code;
};

answered Mar 31 '17 at 12:51

dube

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BTW you can generate that code from the blockly demo page too. Select the "Block Exporter" tab and download the "Generator Stubs" – dube Mar 31 '17 at 12:55
Thanks.. Ya the definition was missing. – Priya Apr 09 '17 at 23:10
I have checked my language definition and its JavaScript only. But still I am getting this error. – Yash Kochar Feb 13 '18 at 13:01
@YashKochar open a question and explain your problem, including code. – dube Feb 13 '18 at 13:08

Cannot read property call of undefined at Blockly.Generator.blockToCode

1 Answers1