JavaScript Array Methods Part2 - JavaScript Tutorial 99
Notes for You:: JavaScript Array Methods Part2 - JavaScript Tutorial 99
JavaScript Array Methods unshift() and shift():
unshift() Method:
adds one or more elements to the beginning of the array
and returns the new length of the array
Syntax:
unshift(...args):number
where:
...args : indicates one or more elements
number: indicates the new length of the array
shift() Method:
removes the element at the beginning of the array
and returns that element
Syntax:
shift():*
where:
*: indicates the first element in the array
Example code:
var studNames = ["Ram","Ravi","Raju","Raghu","Gopal"];
document.write( studNames ); // Ram, Ravi, Raju, Raghu, Gopal
document.write( "<br/>" );
document.write( studNames.length ); // 5
document.write( "<br/>" );
document.write( "<br/>" );
document.write(studNames.unshift("Hitesh")); // 6
document.write( "<br/>" );
document.write(studNames); // Hitesh, Ram, Ravi, Raju, Raghu, Gopal
document.write( "<br/>" );
document.write( "<br/>" );
document.write(studNames.shift()); // Hitesh
document.write( "<br/>" );
document.write(studNames); // Ram, Ravi, Raju, Raghu, Gopal
document.write( "<br/>" );
Note:
replace < with less-than symbol.
replace > with greater-than symbol.
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JavaScript Tutorial 100 - splice() Method | slice() Method | JavaScript Array Methods
• JavaScript Array Methods Part3 - Java...
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JavaScript Tutorial 98 - JavaScript Array Methods | push() Method | pop() Method
• JavaScript Array Methods Part1 - Java...
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