3 examples of 'typescript inline if' in JavaScript

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141export function inlineIf(_vm: VM, { positional }: Arguments) {
142 assert(
143 'The inline form of the `if` helper expects two or three arguments, e.g. ' +
144 '`{{if trialExpired "Expired" expiryDate}}`.',
145 positional.length === 3 || positional.length === 2
146 );
147 return ConditionalHelperReference.create(positional.at(0), positional.at(1), positional.at(2));
148}
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240function applyInlineIf(
241 element: IRElement,
242 babelNode: t.Expression,
243 testExpression?: t.Expression,
244 falseValue: t.Expression = t.nullLiteral()
245): t.Expression {
246 if (!element.if) {
247 return babelNode;
248 }
249
250 if (!testExpression) {
251 testExpression = bindExpression(element.if!, element).expression;
252 }
253
254 let leftExpression: t.Expression;
255 const modifier = element.ifModifier!;
256 if (modifier === 'true') {
257 leftExpression = testExpression;
258 } else if (modifier === 'false') {
259 leftExpression = t.unaryExpression('!', testExpression);
260 } else if (modifier === 'strict-true') {
261 leftExpression = t.binaryExpression('===', testExpression, t.booleanLiteral(true));
262 } else {
263 throw generateCompilerError(TemplateErrors.UNKNOWN_IF_MODIFIER, {
264 messageArgs: [modifier],
265 });
266 }
267
268 return t.conditionalExpression(leftExpression, babelNode, falseValue);
269}
48inline() {
49 return this.tag.namespace === 'inline';
50}

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