本文整理汇总了TypeScript中glimmer-test-helpers.TestEnvironment.registerHelper方法的典型用法代码示例。如果您正苦于以下问题：TypeScript TestEnvironment.registerHelper方法的具体用法？TypeScript TestEnvironment.registerHelper怎么用？TypeScript TestEnvironment.registerHelper使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类glimmer-test-helpers.TestEnvironment的用法示例。
在下文中一共展示了TestEnvironment.registerHelper方法的4个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的TypeScript代码示例。
示例1: test
test("Morphs are escaped correctly", function() {
env.registerHelper('testing-unescaped', function(params) {
return params[0];
});
env.registerHelper('testing-escaped', function(params, hash) {
return params[0];
});
compilesTo('<div>{{{testing-unescaped "<span>hi</span>"}}}</div>', '<div><span>hi</span></div>');
compilesTo('<div>{{testing-escaped "<hi>"}}</div>', '<div><hi></div>');
});示例2: test
test("helper calls follow the normal dirtying rules", function() {
env.registerHelper('capitalize', function(params) {
return params[0].toUpperCase();
});
let template = compile("<div>{{capitalize value}}</div>");
let object = { value: "hello" };
render(template, object);
let textNode = result.firstNode().firstChild;
equal(textNode.nodeValue, "HELLO");
object.value = "goodbye";
rerender();
equalTokens(root, '<div>GOODBYE</div>');
rerender();
equalTokens(root, '<div>GOODBYE</div>');
// Checks normalized value, not raw value
object.value = "GoOdByE";
rerender();
textNode = root.firstChild.firstChild;
equal(textNode.nodeValue, "GOODBYE");
});示例3: test
test("GH#13999 The compiler can handle components with undefined named arguments", function() {
env.registerHelper('say-hello', function() {
return 'hello';
});
compilesTo('<div>{{say-hello foo=undefined}}</div>', '<div>hello</div>');
});示例4: test
test("GH#13999 The compiler can handle components with undefined string literal named arguments", function() {
let value = 'PLACEHOLDER';
env.registerHelper('say-hello', function(_, hash) {
value = hash['foo'];
return 'hello';
});
compilesTo('<div>{{say-hello foo="undefined"}}</div>', '<div>hello</div>');
strictEqual(value, 'undefined', 'is undefined string literal');
});