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Create a Promise To create a promise object, we use thePromise()constructor. letpromise =newPromise(function(resolve, reject){//do something}); ThePromise()constructor takes a function as an argument. The function also accepts two functionsresolve()andreject(). If the promise returns successfull...
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Example 1: Display a Text Once After 3 Second // program to display a text using setTimeout methodfunctiongreet(){console.log('Hello world'); } setTimeout(greet,3000);console.log('This message is shown first'); Run Code Output
// call object methodperson.greet();// Bob says Hi! Run Code Here, we have assigned a function as a value for thegreetkey. These functions that are defined inside objects are calledmethods. Note:Just like we use()to call a function, we must use()to call methods. ...
number- value that is rounded off to its nearest largest integer ceil() Return Value Theceil()method returns: the nearest largest integer after rounding off the specifiednumber NaN(Not a Number) for a non-numeric argument Example 1: JavaScript Math.ceil() with Positive Numbers ...
is() Return Value Theis()method returns aBooleanvalue: true- if the two arguments have the same value false- if the two arguments don't have the same value Conditions for Same Values Two values are the same if one of the following holds: ...