Lint
IanVS
with ESLint
Linting
Static analysis to:
Enforce Style Consistency
Find Errors
Encourage Best Practices
Examples
In JavaScript
// Possible Error
if (x = 0) {
var b = 1;
}
// Comparison, not Assignment
if (x === 0) {
var b = 1;
}// Not Best Practice
if (x == 42) { doSomething() }// Inconsistent Style
foo = "bar";
x=['baz' ]// Triple Equals
if (x === 42) { doSomething() }// Consistent Quotes, Spacing, Semis
foo = "bar";
x = ["baz"];Benefits
Less Bikeshedding
Better Code Reviews
Fast Failures
Good Linters Are:
Pluggable
Flexible
Comprehensive
176 Included Rules
Style, Bugs, Syntax
On/Off
Rule Options
Warn/Error
Rules
Formatters
Parsers
Questions?
