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For pdfFiller’s FAQs

Below is a list of the most common customer questions. If you can’t find an answer to your question, please don’t hesitate to reach out to us.

Can I use object freeze?

freeze() which is used to freeze an object. Freezing an object does not allow new properties to be added to an object and prevents from removing or altering the existing properties. freeze() preserves the enumerability, configurability, writability and the prototype of the object.

How do you unfreeze an object in JavaScript?

First create a duplicate temporary variable of original object. then set the original variable to undefined. the reset the value of it from the temporary.

What is object freeze in JavaScript?

freeze() which is used to freeze an object. Freezing an object does not allow new properties to be added to an object and prevents from removing or altering the existing properties. Object. freeze() preserves the enumerability, configurability, writability and the prototype of the object.

How do you deep freeze an object in JavaScript?

To make an object immutable, recursively freeze each property which is of type object (deep freeze). Use the pattern on a case-by-case basis based on your design when you know the object contains no cycles in the reference graph, otherwise an endless loop will be triggered.

What is immutable object in JavaScript?

An immutable object is an object whose state cannot be modified after it is created. Examples of native JavaScript values that are immutable are numbers and strings. Examples of native JavaScript values that are mutable include objects, arrays, functions, classes, sets, and maps.

How do you freeze a Web page using JavaScript?

include the jquery files: jquery.min.js, jquery.uilock.js. include the jQuery Code below. edit the jQuery to get the locked effect you want. edit the html to include the code (explained in detail below) customise the css styles to get the look you want.

Is object freeze recursive?

To make an object immutable, recursively freeze each property which is of type object (deep freeze). You still run a risk of freezing an object that shouldn't be frozen, such as [window].

Can I use object fromEntries?

The Object. fromEntries() accepts an iterable such as Array or Map and transforms it into an Object: fromEntries() expects the iterable to return an iterator object that produces key-value pairs. It uses the key as the property key of the object and value as the value associated with the property key.
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