Update April 1st, 2026 The Beta site is being retired. Update February 27th, 2026 Another post discussing the changes with the Chief Product and Technology Officer is here. Update February 26th, ...
A new expression is the whole phrase that begins with new. So what do you call just the "new" part of it? If it's wrong to call that the new operator, then we should not call "sizeof" the sizeof operator, or & the address-of operator (when it behaves like one).
It's all determined by your browser's settings. Using window.open tells the browser to open something new, then the browser opens up what is chosen in its settings - tab or window. In the browsers you tested with, change the settings to open in a new window instead of a tab and you'll see the others' solutions are wrong.
New does not guarantee heap allocation and simply avoiding new does not guarantee stack allocation. New is always used to allocate dynamic memory, which then has to be freed. By doing the first option, that memory will be automagically freed when scope is lost.
The new operator uses the internal [[Construct]] method, and it basically does the following: Initializes a new native object Sets the internal [[Prototype]] of this object, pointing to the Function prototype property. If the function's prototype property is not an object (a primitive values, such as a Number, String, Boolean, Undefined or Null), Object.prototype is used instead. After ...
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