JavaScript: Remove the first occurrence of a given 'search string' from a string
JavaScript String: Exercise-26 with Solution
Write a JavaScript function to remove the first occurrence of a given 'search string' from a string.
Test Data:
console.log(remove_first_occurrence("The quick brown fox jumps over the lazy dog", 'the'));
Output:
"The quick brown fox jumps over lazy dog"
Pictorial Presentation:
Sample Solution:-
HTML Code:
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Write a JavaScript function to remove the first occurrence of a given 'search string' from a string</title>
</head>
<body>
</body>
</html>
JavaScript Code:
function remove_first_occurrence(str, searchstr) {
var index = str.indexOf(searchstr);
if (index === -1) {
return str;
}
return str.slice(0, index) + str.slice(index + searchstr.length);
}
console.log(remove_first_occurrence("The quick brown fox jumps over the lazy dog", 'the'));
Sample Output:
The quick brown fox jumps over lazy dog
Flowchart:
Live Demo:
See the Pen Remove the first occurrence of a given 'search string' from a string - string-ex-26 by w3resource (@w3resource) on CodePen.
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Next: Write a JavaScript function to convert ASCII to Hexadecimal format.
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JavaScript: Tips of the Day
How to insert an item into an array at a specific index (JavaScript)?
What you want is the splice function on the native array object.
arr.splice(index, 0, item); will insert item into arr at the specified index (deleting 0 items first, that is, it's just an insert). In this example we will create an array and add an element to it into index 2:
var arr = []; arr[0] = "Jani"; arr[1] = "Hege"; arr[2] = "Stale"; arr[3] = "Kai Jim"; arr[4] = "Borge"; console.log(arr.join()); arr.splice(2, 0, "Lene"); console.log(arr.join());
Ref: https://bit.ly/2BXbp04
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