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JavaScript filter an array of strings, matching case insensitive substring?
Let’s first create array of strings −
let studentDetails = [ {studentName: "John Smith"}, {studentName: "john smith"}, {studentName: "Carol Taylor"} ];
Now, match case insensitive substring, use the filter() and the concept of toLowerCase() in it. Following is the code −
Example
let studentDetails = [ {studentName: "John Smith"}, {studentName: "john smith"}, {studentName: "Carol Taylor"} ]; var searchName="John Smith" console.log(studentDetails.filter(obj => obj.studentName.toLowerCase().indexOf(searchName.toLowerCase()) >= 0));
To run the above program, you need to use the following command;
node fileName.js.
Here, my file name is demo55.js.
Output
This will produce the following output −
PS C:\Users\Amit\JavaScript-code> node demo55.js [ { studentName: 'John Smith' }, { studentName: 'john smith' } ]
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