本文整理匯總了TypeScript中babel-types.numericLiteral函數的典型用法代碼示例。如果您正苦於以下問題：TypeScript numericLiteral函數的具體用法？TypeScript numericLiteral怎麽用？TypeScript numericLiteral使用的例子？那麽, 這裏精選的函數代碼示例或許可以為您提供幫助。
在下文中一共展示了numericLiteral函數的4個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的TypeScript代碼示例。
示例1: convertArrayToAstExpression
return arr.map(value => {
if (typeof value === 'string') {
return t.stringLiteral(value)
}
if (typeof value === 'number') {
return t.numericLiteral(value)
}
if (typeof value === 'boolean') {
return t.booleanLiteral(value)
}
if (Array.isArray(value)) {
return convertArrayToAstExpression(value)
}
if (typeof value === 'object') {
return t.objectExpression(convertObjectToAstExpression(value))
}
return t.nullLiteral()
})示例2:
const objArr = Object.keys(obj).map(key => {
const value = obj[key]
if (typeof value === 'string') {
return t.objectProperty(t.stringLiteral(key), t.stringLiteral(value))
}
if (typeof value === 'number') {
return t.objectProperty(t.stringLiteral(key), t.numericLiteral(value))
}
if (typeof value === 'boolean') {
return t.objectProperty(t.stringLiteral(key), t.booleanLiteral(value))
}
if (Array.isArray(value)) {
return t.objectProperty(t.stringLiteral(key), t.arrayExpression(convertArrayToAstExpression(value as [])))
}
if (typeof value === 'object') {
return t.objectProperty(t.stringLiteral(key), t.objectExpression(convertObjectToAstExpression(value)))
}
return t.objectProperty(t.stringLiteral(key), t.nullLiteral())
})示例3: BinaryExpression
const node = path.node;
if (t.isIdentifier(node) && node.name === "n") {
node.name = "x";
}
}
});
// Examples from https://github.com/thejameskyle/babel-handbook/blob/master/translations/en/plugin-handbook.md#writing-your-first-babel-plugin
const v1: Visitor = {
BinaryExpression(path) {
if (t.isIdentifier(path.node.left)) {
// ...
}
path.replaceWith(
t.binaryExpression("**", path.node.left, t.numericLiteral(2))
);
path.parentPath.replaceWith(
t.expressionStatement(t.stringLiteral("Anyway the wind blows, doesn't really matter to me, to me."))
);
path.parentPath.remove();
},
Identifier(path) {
if (path.isReferencedIdentifier()) {
// ...
}
if (t.isReferenced(path.node, path.parent)) {
// ...
}
},示例4:
const { node } = path;
const open = node.openingElement;
// init
const type = open.name;
let newType: t.StringLiteral;
if (t.isJSXIdentifier(type) && t.react.isCompatTag(type.name)) {
newType = t.stringLiteral(type.name);
}
const args: any[] = [];
if (node.children.length) {
const children = t.react.buildChildren(node);
args.push(
t.unaryExpression("void", t.numericLiteral(0), true),
...children,
);
}
}
});
// TypeScript Types
// TODO: Test all variants of these functions' signatures
const id = t.identifier("id");
const tparam = t.typeParameterDeclaration([id]);
const any = t.TSAnyKeyword();
t.TSArrayType(any);
t.TSAsExpression(exp, any);