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JavaScript

JavaScript is a synchronous single-threaded programming language.

Synchronous :

  • In JavaScript, synchronous refers to the way certain operations are executed, particularly when it comes to functions and code execution flow. When a piece of code is synchronous, it means that it will execute line by line in a sequential manner. Each line of code must complete its task before the next line of code is executed.
  • āϏāĻžāϧāĻžāϰāĻŖāϤ āϏāĻŋāĻ™ā§āĻ•ā§āϰ⧋āύāĻžāϏ āĻŽāĻžāύ⧇ āĻĒāϰāĻĒāϰ(āĻāĻ•āϟāĻŋāϰ āĻĒāϰ āĻāĻ•āϟāĻŋ ) āϕ⧋āύ āĻ•āĻžāϜ āϏāĻŽā§āĻĒāĻ¨ā§āύ āĻ•āϰāĻžāϕ⧇ āĻŦā§‹āĻāĻžāϝāĻŧāĨ¤ āϝāĻĻāĻŋ āϕ⧋āύ āϕ⧋āĻĄ āϏāĻŋāĻ™ā§āĻ•ā§āϰ⧋āύāĻžāϏ āĻšāϝāĻŧ āϤāĻžāϰ āĻŽāĻžāύ⧇ āĻ“āχ āϕ⧋āĻĄ āĻāϰ āĻĒā§āϰāϤāĻŋāϟāĻŋ āϞāĻžāχāύ āĻāĻ•āϟāĻŋ āĻĒāϰ āφāϰ⧇āĻ•āϟāĻŋ āϞāĻžāχāύ āĻāĻ•ā§āϏāĻŋāĻ•āĻŋāωāϟ āĻšāĻŦ⧇ āĻāĻŦāĻ‚ āĻāĻ•āϟāĻŋ āϞāĻžāχāύ⧇āϰ āϕ⧋āĻĄ āĻāϰ āĻ•āĻžāϜ āĻļ⧇āώ āύāĻž āĻšāĻ“āϝāĻŧāĻž āĻĒāĻ°ā§āϝāĻ¨ā§āϤ āĻĒāϰāĻŦāĻ°ā§āϤ⧀ āϞāĻžāχāύ⧇āϰ āϕ⧋āĻĄ āĻāĻ•ā§āϏāĻŋāĻ•āĻŋāωāϟ āĻšāĻŦ⧇ āύāĻžāĨ¤

Single-threaded :

  • Being single threaded in JavaScript means that the programming language and the language's runtime environment (such as a web browser or Node.js) use only one main execution thread to complete all tasks. A thread is a sequence of instructions that can be executed independently by a CPU.

  • A fundamental feature of JavaScript is its single-threaded behavior. This means that, by default, JavaScript can only perform one operation at a time. When a JavaScript program runs, JavaScript executes tasks in a sequence and finishes the previous task before starting the new task.

  • āϜāĻžāĻ­āĻžāĻ¸ā§āĻ•ā§āϰāĻŋāĻĒā§āĻŸā§‡ āϏāĻŋāĻ™ā§āϗ⧇āϞ āĻĨā§āϰ⧇āĻĄā§‡āĻĄ āĻšāĻ“āϝāĻŧāĻžāϰ āĻ…āĻ°ā§āĻĨ āĻšāϞ āĻĒā§āϰ⧋āĻ—ā§āϰāĻžāĻŽāĻŋāĻ‚ āĻ˛ā§āϝāĻžāĻ™ā§āĻ—ā§ā§Ÿā§‡āĻœā§‡āϟāĻŋ āĻāĻŦāĻ‚ āĻ˛ā§āϝāĻžāĻ™ā§āĻ—ā§ā§Ÿā§‡āĻœā§‡āϟāĻŋāϰ āϰāĻžāύāϟāĻžāχāĻŽ āĻāύāĻ­āĻžā§ŸāϰāύāĻŽā§‡āĻ¨ā§āϟ (āϝ⧇āĻŽāύ āĻ“āϝāĻŧ⧇āĻŦ āĻŦā§āϰāĻžāωāϜāĻžāϰ āĻŦāĻž Node.js) āϏāĻ•āϞ āĻ•āĻžāϜ āϏāĻŽā§āĻĒāĻ¨ā§āύ āĻ•āϰāĻžāϰ āϜāĻ¨ā§āϝ āĻļ⧁āϧ⧁āĻŽāĻžāĻ¤ā§āϰ āĻāĻ•āϟāĻŋ āĻĒā§āϰāϧāĻžāύ āĻāĻ•ā§āϏāĻŋāĻ•āĻŋāωāĻļāύ āĻĨā§āϰ⧇āĻĄ āĻŦā§āϝāĻŦāĻšāĻžāϰ āĻ•āϰ⧇āĨ¤ āĻĨā§āϰ⧇āĻĄ āĻšāĻšā§āϛ⧇ āĻ•āĻŋāϛ⧁ āχāĻ¨ā§āϏāĻŸā§āϰāĻžāĻ•āĻļāύ āĻāϰ āϏāĻŋāĻ•ā§‹ā§Ÿā§‡āĻ¨ā§āϏ āĻŦāĻž āĻ•ā§āϰāĻŽ, āϝāĻž āĻāĻ•āϟāĻŋ CPU āĻĻā§āĻŦāĻžāϰāĻž āĻ¸ā§āĻŦāĻžāϧ⧀āύāĻ­āĻžāĻŦ⧇ āĻāĻ•ā§āϏāĻŋāĻ•āĻŋāωāϟ āĻŦāĻž āĻ•āĻžāĻ°ā§āϝāĻ•āϰ āĻ•āϰāĻž āϝ⧇āϤ⧇ āĻĒāĻžāϰ⧇āĨ¤

  • āϜāĻžāĻ­āĻžāĻ¸ā§āĻ•ā§āϰāĻŋāĻĒā§āĻŸā§‡āϰ āĻāĻ•āϟāĻŋ āĻŽā§ŒāϞāĻŋāĻ• āĻŦ⧈āĻļāĻŋāĻˇā§āĻŸā§āϝāχ āĻšāϞ āĻāϰ āϏāĻŋāĻ™ā§āϗ⧇āϞ āĻĨā§āϰ⧇āĻĄā§‡āĻĄ āφāϚāϰāĻŖ āĻ•āϰāĻžāĨ¤ āĻāϰ āĻŽāĻžāύ⧇ āĻšāϞ āϝ⧇, āĻĄāĻŋāĻĢāĻ˛ā§āϟ āĻ­āĻžāĻŦ⧇, āϜāĻžāĻ­āĻžāĻ¸ā§āĻ•ā§āϰāĻŋāĻĒā§āϟ āĻāĻ•āĻŦāĻžāϰ⧇ āĻļ⧁āϧ⧁āĻŽāĻžāĻ¤ā§āϰ āĻāĻ•āϟāĻŋ āĻ…āĻĒāĻžāϰ⧇āĻļāύ āĻ•āϰāϤ⧇ āĻĒāĻžāϰ⧇āĨ¤ āϝāĻ–āύ āĻāĻ•āϟāĻŋ āϜāĻžāĻ­āĻžāĻ¸ā§āĻ•ā§āϰāĻŋāĻĒā§āϟ āĻĒā§āϰ⧋āĻ—ā§āϰāĻžāĻŽ āϚāϞ⧇, āϤāĻ–āύ āϜāĻžāĻ­āĻžāĻ¸ā§āĻ•ā§āϰāĻŋāĻĒā§āϟ āĻāĻ•āϟāĻŋ āĻ•ā§āϰāĻŽāĻžāύ⧁āϏāĻžāϰ⧇ āĻ•āĻžāϜāϗ⧁āϞāĻŋāϕ⧇ āĻ•āϰ⧇ āĻāĻŦāĻ‚ āύāϤ⧁āύ āĻ•āĻžāϜ āĻļ⧁āϰ⧁ āĻ•āϰāĻžāϰ āφāϗ⧇ āĻĒā§‚āĻ°ā§āĻŦ⧇āϰ āĻ•āĻžāϜāϟāĻŋ āĻļ⧇āώ āĻ•āϰ⧇āĨ¤

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