What are modifiers in regular expression?
Interviewer Expectations for this Question
01
Core Competency
Assesses fundamental understanding of JavaScript conventions, runtime behavior, and memory/performance considerations.
02
Evaluation Criteria
Hiring managers look for precision, avoidance of ambiguous jargon, and ability to explain trade-offs under real production conditions.
Comprehensive Model Answer
Verified Solution
Modifiers can be used to perform case-insensitive and global searches. Let's list some of the modifiers,
| Modifier | Description |
| -------- | ------------------------------------------------------- |
| i | Perform case-insensitive matching |
| g | Perform a global match rather than stops at first match |
| m | Perform multiline matching |
Let's take an example of global modifier,
var text = "Learn JS one by one";
var pattern = /one/g;
var result = text.match(pattern); // one,one
Candidate Response Strategy & Interview Tips
- Start with a concise one-sentence summary: Deliver a direct, confident answer first before expanding into nuances.
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