2 Matching Annotations
- Aug 2022
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javascript.info javascript.info
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The main difference between these two syntaxes is that pattern using slashes /.../ does not allow for expressions to be inserted (like string template literals with ${...}). They are fully static
This is the main difference between creating a regular expression by using slashes /<here your reg exp>/ and creating a new instance of RegExp() class. You cannot use literal template ${varSubstitution}
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www.tektutorialshub.com www.tektutorialshub.com
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The unary plus operator (+) precedes its operand and converts it into a number. If it fails to convert the operand into a number, then it returns NaN. The unary (-) operator converts the operand into a number and negates it.
an alternative to !!, in order to convert null, empty strings, boolean values into 0 or 1.
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