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<h1 class="page-title">Source: checks/efficient.js</h1>
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<pre class="prettyprint source linenums"><code>'use strict'
var valueRe = /(margin|padding)+[:| ]/
/**
* @description check for 0 0 0 0 or 50px 0 50px 0 type mistakes
* @param {string} [line] curr line being linted
* @returns {boolean} true if efficient, false if not
*/
var efficient = function( line ) {
// line doesnt have margin or padding then there's nothin to do here
if ( !valueRe.test( line ) ) { return }
var isEfficient = true
var arr = this.splitAndStrip( new RegExp( /[\s\t]/ ), line )
// if margin or padding we run the tests
// if line is potentially inefficient it needs to be at least this long
if ( arr.length > 2 ) {
// ex: margin 0 5px
if ( arr.length === 3 ) {
// ex margin 0 0
if ( arr[1] === arr[2] ) {
isEfficient = false
}
}
// ex margin 0 5px 10px
else if ( arr.length === 4 && arr[1] === arr[3] ) {
// ex margin 0 5px 0
isEfficient = false
}
// ex margin 0 50px 10px 7px
else if ( arr.length === 5 ) {
// ex margin 0 5px 0 5px or
if ( arr[1] === arr[3] && arr[2] === arr[4] ||
arr[1] !== arr[3] && arr[2] === arr[4] ) {
isEfficient = false
}
}
}
var index = line.indexOf( arr[1] )
if ( this.state.conf === 'never' && isEfficient === true ) {
this.msg( 'the value on this line is too succinct', index )
}
else if ( this.state.conf === 'always' && isEfficient === false ) {
this.msg( 'the value on this line could be more succinct', index )
}
return isEfficient
}
module.exports = efficient
</code></pre>
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