eslint-plugin-unicorn-x/rules/ast/literal.js

More than 100 powerful ESLint rules

export function isLiteral(node, value) {
	if (node?.type !== 'Literal') {
		return false;
	}

	if (value === null) {
		return node.raw === 'null';
	}

	return node.value === value;
}

export const isStringLiteral = (node) =>
	node?.type === 'Literal' && typeof node.value === 'string';

export const isNumberLiteral = (node) =>
	node.type === 'Literal' && typeof node.value === 'number';

export const isRegexLiteral = (node) =>
	node.type === 'Literal' && node.regex !== undefined && node.regex !== null;

// eslint-disable-next-line unicorn-x/no-null
export const isNullLiteral = (node) => isLiteral(node, null);

export const isBigIntLiteral = (node) =>
	node.type === 'Literal' && node.bigint !== undefined && node.bigint !== null;