Method getCommonKind

src/scope/VariableGroup.js:44–52

* Returns the `kind` value of variable defined in this group. * * When not all variables are of the same kind, returns undefined. * * @return {String} Either "var", "let", "const" or undefined.

()

   * @return {String} Either "var", "let", "const" or undefined.
   */
  getCommonKind() {
    const firstKind = this.variables[0].getKind();
    if (this.variables.every(v => v.getKind() === firstKind)) {
      return firstKind;
    }
    else {
      return undefined;
    }
  }

  /**
   * Returns the most restrictive possible common `kind` value