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javascript function

function assert(value1, value2) {  if (value1) {    console.log(value2);  }}function isNimble() {  return true;}assert(typeof window.isNimble === "function", "is isNimbl() defined");assert(isNimble.name === "isNimble", "isNimble() has a name");var canFly = function() {  return true;};assert(typeof window.canFly === "function", "canFly() defined");assert(canFly.name === "", "canFly() has no name");window.isDeadly = function() {  return true;};assert(typeof window.isDeadly === "function", "isDeadly() defined");assert(isDeadly.name === "isDeadly", "isDeadly() has a name");function outer() {  assert(typeof inner === "function", "inner() in scope before declaration");  function inner () {}  assert(typeof inner === "function", "inner() in scope after declaration");  assert(window.inner === undefined, "inner() not in global scope");}outer();assert(window.inner === undefined, "inner() stilll not in global scope");window.wieldsSword = function swingsSword() { return true; };assert(window.wieldsSword.name === ‘swingsSword‘, "wieldSword‘s real name is swingsSword");
"is isNimbl() defined""isNimble() has a name""canFly() defined""canFly() has no name""isDeadly() defined""inner() in scope before declaration""inner() in scope after declaration""inner() not in global scope""inner() stilll not in global scope""wieldSword‘s real name is swingsSword"

 

javascript function