demo/typescript.js
function getJsDocTagAtPosition(sourceFile, position) {
        var node = ts.getTokenAtPosition(sourceFile, position);
        if (isToken(node)) {
            switch (node.kind) {
                case 102 /* VarKeyword */:
                case 108 /* LetKeyword */:
                case 74 /* ConstKeyword */:
                    // if the current token is var, let or const, skip the VariableDeclarationList
                    node = node.parent === undefined ? undefined : node.parent.parent;
                    break;
                default:
                    node = node.parent;
                    break;
            }
        }
        if (node) {
            var jsDocComment = node.jsDocComment;
            if (jsDocComment) {
                for (var _i = 0, _a = jsDocComment.tags; _i < _a.length; _i++) {
                    var tag = _a[_i];
                    if (tag.pos <= position && position <= tag.end) {
                        return tag;
                    }
                }
            }
        }
        return undefined;
    }
function getJsDocTagAtPosition(sourceFile, position) {
        var node = ts.getTokenAtPosition(sourceFile, position);
        if (isToken(node)) {
            switch (node.kind) {
                case 102 /* VarKeyword */:
                case 108 /* LetKeyword */:
                case 74 /* ConstKeyword */:
                    // if the current token is var, let or const, skip the VariableDeclarationList
                    node = node.parent === undefined ? undefined : node.parent.parent;
                    break;
                default:
                    node = node.parent;
                    break;
            }
        }
        if (node) {
            var jsDocComment = node.jsDocComment;
            if (jsDocComment) {
                for (var _i = 0, _a = jsDocComment.tags; _i < _a.length; _i++) {
                    var tag = _a[_i];
                    if (tag.pos <= position && position <= tag.end) {
                        return tag;
                    }
                }
            }
        }
        return undefined;
    }
Get the corresponding JSDocTag node if the position is in a jsDoc comment