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Web-Related Terms Beginning with L

lastIndexOf() JavaScript Array Method

lastIndexOf() searches its calling array for the last occurrence of the method's argument.

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lastIndexOf() JavaScript String Method

lastIndexOf() searches its calling string for the last occurrence of the method's argument.

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Lazy Quantifiers (RegExp)

Lazy quantifiers are quantifier operators that will automatically find the shortest part of the given string that matches the specified RegExp pattern.

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Left-Hand Side Expression (JS)

A left-hand side expression is a piece of code on the left-hand side of an assignment operator.

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Less than Operator (JS)

The less than operator (<) checks if its left operand is less than its right-hand one. If so, the Boolean value true gets returned. Otherwise, the computer will return false.

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Less than or Equal to Operator (JS)

The less than or equal to operator (<=) checks if its left operand is less than or equal to the one on the right-hand. If so, the Boolean value true gets returned. Otherwise, the computer will return false.

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Lexical

Lexical refers to the definition of things.

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Lexical Scope

Lexical scope is the definition area of an expression.

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Lexicon

A lexicon is a dictionary where words are listed and defined.

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Library

A library is a codebase written to act as an add-on feature to your application.

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Lifecycle (ReactJS)

The lifecycle of a React component refers to the series of stages a component instance goes through from its creation to its total removal from the DOM.

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Lifecycle Methods (ReactJS)

Lifecycle methods are the inbuilt React methods you can use to operate on your components during their lifecycle in the DOM.

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Locally Installed Package

A locally installed package is one that you can use only in the project in which you've installed it.

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Logic (JS)

Logic is the analytical action performed by a computer, which often requires the computer to decide if a specific condition is true or false.

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Logical Expression (JS)

A logical expression is a piece of code that expresses the Boolean values, true or false.

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Loop Statement (JS)

A loop statement is any piece of code that allows you to repeat a program's execution easily and quickly.

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