100+ JavaScript Concepts you Need to Know
Fireship・14 minutes read
JavaScript is a versatile programming language with various applications, job opportunities, and a standard implementation called ECMAScript. It was created in 1993 to make websites interactive by Brendan Eich, and it can run in web browsers and servers using tools like Node.js and Dino.
Insights
- JavaScript, created by Brendan Eich in 1993, enables interactive websites and diverse applications, offering job prospects post-proficiency.
- The language's execution via V8 engine and varied scopes of let, const, or var for defining variables underscore its significance as a foundational tool for beginners and professionals alike.
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Recent questions
What is JavaScript used for?
Building applications and making websites interactive.
How was JavaScript created?
By Brendan Eich at Netscape in 1993.
What tools can run JavaScript on servers?
Node.js and Dino.
How is JavaScript executed?
Line by line as a scripting language.
How can JavaScript variables be defined?
Using let, const, or var, each with different scopes.
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Summary
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JavaScript: Versatile Language with Job Opportunities
- JavaScript is a versatile programming language, both beneficial and challenging for beginners.
- It allows for building various applications and offers job opportunities upon mastery.
- JavaScript was created in 1993 by Brendan Eich at Netscape to make websites interactive.
- The language is widely used today, with its standard implementation called ECMAScript.
- JavaScript can run in web browsers and on servers using tools like Node.js and Dino.
- JavaScript is a scripting language executed line by line, with an engine called V8 for fast processing.
- To use JavaScript on a web page, include a script tag in an HTML document.
- Variables in JavaScript can be defined using let, const, or var, each with different scopes.
- Functions in JavaScript are essential building blocks, can be used as expressions, and create closures.
