Calc app getting an error I don’t understand? It says expected ; on VS Code

On button click it should input value into the text field and solve when the qual button is pressed.

VS CODE Says expected ;

<form
  name="Window-MainWrapper"
  id="Window-MainWrapper"
  class="Window-MainWrapper"
>
  <div
    name="Calc-AnswerContainer"
    id="Calc-AnswerContainer"
    class="Calc-AnswerContainer"
  >
    <input
      type="text"
      placeholder="Answer"
      name="Calc-AnswerInput"
      id="Calc-AnswerInput"
      class="Calc-AnswerInput"
    />
    <input
      type="button"
      value="Clear"
      name="Calc-AnswerClear"
      id="Calc-AnswerClear"
      class="Calc-AnswerClear"
    />
  </div>

  <div
    name="Calc-FuncContainer"
    id="Calc-FuncContainer"
    class="Calc-FuncContainer"
  >
    <input
      type="button"
      value="1"
      name="Calc-FuncInput"
      id="Calc-FuncInput"
      class="Calc-FuncInput"
      onclick="Window-MainWrapper.Calc-AnswerInput.value +='1'"
    />
    <input
      type="button"
      value="2"
      name="Calc-FuncInput"
      id="Calc-FuncInput"
      class="Calc-FuncInput"
      onclick="Window-MainWrapper.Calc-AnswerInput.value +='2'"
    />
    <input
      type="button"
      value="3"
      name="Calc-FuncInput"
      id="Calc-FuncInput"
      class="Calc-FuncInput"
      onclick="Window-MainWrapper.Calc-AnswerInput.value +='3'"
    />
    <input
      type="button"
      value="+"
      name="Calc-FuncInput"
      id="Calc-FuncInput"
      class="Calc-FuncInput"
      onclick="Window-MainWrapper.Calc-AnswerInput.value +='+'"
    />

    <input
      type="button"
      value="4"
      name="Calc-FuncInput"
      id="Calc-FuncInput"
      class="Calc-FuncInput"
      onclick="Window-MainWrapper.Calc-AnswerInput.value +='4'"
    />
    <input
      type="button"
      value="5"
      name="Calc-FuncInput"
      id="Calc-FuncInput"
      class="Calc-FuncInput"
      onclick="Window-MainWrapper.Calc-AnswerInput.value +='5'"
    />
    <input
      type="button"
      value="6"
      name="Calc-FuncInput"
      id="Calc-FuncInput"
      class="Calc-FuncInput"
      onclick="Window-MainWrapper.Calc-AnswerInput.value +='6'"
    />
    <input
      type="button"
      value="-"
      name="Calc-FuncInput"
      id="Calc-FuncInput"
      class="Calc-FuncInput"
      onclick="Window-MainWrapper.Calc-AnswerInput.value +='-'"
    />

    <input
      type="button"
      value="7"
      name="Calc-FuncInput"
      id="Calc-FuncInput"
      class="Calc-FuncInput"
      onclick="Window-MainWrapper.Calc-AnswerInput.value +='7'"
    />
    <input
      type="button"
      value="8"
      name="Calc-FuncInput"
      id="Calc-FuncInput"
      class="Calc-FuncInput"
      onclick="Window-MainWrapper.Calc-AnswerInput.value +='8'"
    />
    <input
      type="button"
      value="9"
      name="Calc-FuncInput"
      id="Calc-FuncInput"
      class="Calc-FuncInput"
      onclick="Window-MainWrapper.Calc-AnswerInput.value +='9'"
    />
    <input
      type="button"
      value="x"
      name="Calc-FuncInput"
      id="Calc-FuncInput"
      class="Calc-FuncInput"
      onclick="Window-MainWrapper.Calc-AnswerInput.value +='*'"
    />

    <input
      type="button"
      value="/"
      name="Calc-FuncInput"
      id="Calc-FuncInput"
      class="Calc-FuncInput"
      onclick="Window-MainWrapper.Calc-AnswerInput.value +='/'"
    />
    <input
      type="button"
      value="0"
      name="Calc-FuncInput"
      id="Calc-FuncInput"
      class="Calc-FuncInput"
      onclick="Window-MainWrapper.Calc-AnswerInput.value +='0'"
    />
    <input
      type="button"
      value="."
      name="Calc-FuncInput"
      id="Calc-FuncInput"
      class="Calc-FuncInput"
      onclick="Window-MainWrapper.Calc-AnswerInput.value +='.'"
    />
    <input
      type="button"
      value="="
      name="Calc-FuncInput"
      id="Calc-FuncInput"
      class="Calc-FuncInput"
      onclick="Window-MainWrapper.Calc-AnswerInput.value = eval(Window-MainWrapper.Calc-AnswerInput.value)"
    />
  </div>
</form>

On button click it should input value into the text field and solve when the qual button is pressed.