What does "use strict" do in JavaScript, and what is the reasoning behind it?
What does "use strict" do in JavaScript, and what is the reasoning behind it?
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27-Oct-2022
Updated on 27-Oct-2022
Gourav Jangra
28-Oct-2022Strict Mode makes easier to write secure Javascript.Strict mode changes previously accepted bad syntax into real errors.
As an example, in normal JavaScript, mistyping a variable name creates a new global variable. In strict mode, this will throw an error, making it impossible to accidentally create a global variable.