Strings in JavaScript (OCR A-Level Computer Science): Flashcards

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Strings in JavaScript
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What are strings in JavaScript?

Sequences of characters used for text

String property for length

.length

Three common string methods

.substring(), .toUpperCase(), .toLowerCase()

.toUpperCase() purpose

Converts string to uppercase

.toLowerCase() purpose

Converts string to lowercase

'JavaScript'.length output

10

'JavaScript'.toUpperCase() result

'JAVASCRIPT'

Common string comparison mistake

Using == instead of ===

Correct operator for strict equality

===

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Compression, Encryption & Hashing

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