title: Can I use component's property as method's argument in Angular 6?
body: <p>In my Angular 6 application I have method which should modify my component's property. What I exactly mean:</p>
  
  <pre><code>...
  value: number = 10;
  changeValue(v) { return v = 100; }
  ...
  </code></pre>
  
  <p>The I invoke this method with component's property:</p>
  
  <pre><code>this.changeValue(this.value); // didn't modify this.value 
  </code></pre>
  
  <p>and I expect that <code>this.value</code> will be equal to 100, but it's still equals to 10. At the same time, I know that I can read value of <code>v</code> parameter (<code>this.value</code> in my case) inside of the function, but I can't modify it.</p>
  
  <p>What I'm doing wrong and how can I achieve desired behavior?
  Could you show me right direction to solve this problem, please?
  I'll be appreciate for any help.</p>