JavaScript function* expression
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The function* is an inbuilt keyword in JavaScript which is used to define a generator function inside an expression.
Syntax:
function* [name]([param1[, param2[, ..., paramN]]]) {
statements
}
Parameters: This function accepts the following parameter as mentioned above and described below:
- name: This parameter is the function name.
- paramN: This parameter is the name of an argument to be passed to the function.
- statements: These parameters comprise the body of the function.
Example 1: Below examples illustrate the function* expression in JavaScript:
Javascript
// Illustration of function* expression// use of function* keywordfunction* func() { yield 1; yield 2; yield 3; yield " - Geeks";}let obj = '';// Function callingfor (const i of func()) { obj = obj + i;}// Outputconsole.log(obj); |
Output
123 - Geeks
Example 2: Below examples illustrate the function* expression in JavaScript:
Javascript
// Illustration of function* expression// use of function* keywordfunction* func2(y) { yield y * y;};function* func1() { for (let i = 1; i < 6; i++) { yield* func2(i); }};// Function callingfor (const x of func1()) { // Output console.log(x);}; |
Output
1 4 9 16 25
Supported Browsers:
The browsers supported by JavaScript function* expression are listed below:
- Google Chrome 49 and above
- Edge 12 and above
- Firefox 26 and above
- Opera 36 and above
- Safari 10 and above
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