JavaScript OR (||) variable assignment explanation

by

See short-circuit evaluation for the explanation. It’s a common way of implementing these operators; it is not unique to JavaScript.

More Related Contents:

  1. JavaScript OR (||) variable assignment explanation
  2. Multiple left-hand assignment with JavaScript
  3. What is the quickest way to subtract a variable from a number and set the variable?
  4. Node.js bug ? function’s return value change when stored as variable
  5. html form that passes information to a variable in javascript [closed]
  6. What is the scope of variables in JavaScript?
  7. console.log() shows the changed value of a variable before the value actually changes
  8. What does “var FOO = FOO || {}” (assign a variable or an empty object to that variable) mean in Javascript?
  9. Declaring variables without var keyword
  10. Operator precedence with Javascript Ternary operator
  11. Are Variable Operators Possible?
  12. Why is the value of my input always empty if I store it in a variable?
  13. How to swap two variables in JavaScript
  14. What does ${} (dollar sign and curly braces) mean in a string in JavaScript?
  15. JavaScript code trick: What’s the value of foo.x
  16. Javascript: Converting String to Number?
  17. Javascript “Variable Variables”: how to assign variable based on another variable?
  18. Javascript variables in HTML attributes
  19. Access variable outside function scope [duplicate]
  20. Effect of declared and undeclared variables
  21. Why does shadowed variable evaluate to undefined when defined in outside scope?
  22. jQuery ajax return value [duplicate]
  23. ReferenceError: variable is not defined
  24. What does an exclamation mark before a variable mean in JavaScript
  25. Javascript date variable assignment
  26. Use JavaScript variable as function name?
  27. How do I combine 2 javascript variables into a string
  28. Setting onclick to use current value of variable in loop [duplicate]
  29. Can a JavaScript variable be used in plain HTML?
  30. Javascript: Get access to local variable or variable in closure by its name [duplicate]

Leave a Comment