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Node.js – process.throwDeprecation() Method
This method indicates about the flag value of --throw-deprecation which is set to True or False on the current Node.js project.
The process.throwDeprecation() method is mutable, so the deprecation warning results in errors may be altered at runtime.
Syntax
process.throwDeprecation( )
Example 1
Create a file with the name "throwDeprecation.js" and copy the following code. After creating the file, use the command "node throwDeprecation.js" to run this code as shown in the example below
// process.throwDeprecation() Demo Example // Importing the process module const process = require('process'); // Printing the --throw-Deprecation default value console.log(process.throwDeprecation);
Output 1
undefined
Output 2
true
Example 2
Let's take another example
// process.throwDeprecation() Demo Example // Importing the process module const process = require('process'); // Initializing the throwDeprecation flag process.throwDeprecation = false; // Printing throwDeprecation console.log(process.throwDeprecation); // Initializing the throwDeprecation flag process.throwDeprecation = true; // Printing throwDeprecation console.log(process.throwDeprecation);
Output 1
false true
Output 2
true true
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