Direct Reference In Javascript

Redirecting to a relative URL in JavaScript Asked 15 years, 7 months ago Modified 2 years, 5 months ago Viewed 756k times

Naveen Karippai takes a close look at how JavaScript references work, how they differ from primitive values, and shows how to avoid some common gotchas.

Direct vs Indirect Function Execution JavaScript functions can run upon events or because you call them directly. This affects how you execute the functions!

If you're dealing with JavaScript source code, and not dealing with a string, you're not dealing with JSON. There's no way within the object initializer to refer to another key of the object being initialized, because there's no way to get a reference to the object being created until the initializer is finished.

When dealing with objects in JavaScript, how you assign them to variables or properties can have significant implications for your app's behavior. The default approach is to assign the value using the quotquot operator. This is called direct assignment. However, another approach is to make a copy using one of several approaches.

a.k.a. quotpointers for JavaScript developersquot On Day 1 of learning to code, someone tells you quotA variable is like a box. Writing thing 5 puts 5 in the thing boxquot. And that's not really how variables work, but it's good enough to get you going. It's like in math class when they lie to you about the full picture, because the full picture would explode your brain right now. Some

The JavaScript reference serves as a repository of facts about the JavaScript language. The entire language is described here in detail. As you write JavaScript code, you'll refer to these pages often thus the title quotJavaScript referencequot.

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Summary Objects are assigned and copied by reference. In other words, a variable stores not the quotobject valuequot, but a quotreferencequot address in memory for the value. So copying such a variable or passing it as a function argument copies that reference, not the object itself.

Yea, could be. A direct reference would be a reference resolved solely via identifier resolution, whereas an indirect reference would be a property reference e.g. obj.prop, which is resolved in two steps First, identifier resolution is performed on the name quotobjquot, which resolves in a reference to the object, and then, a new reference is forged, which base-value is the object-reference, and