| 12345678910111213141516171819202122232425262728293031323334 | let Declaration = require('../declaration')let utils = require('./grid-utils')class GridArea extends Declaration {  /**   * Translate grid-area to separate -ms- prefixed properties   */  insert(decl, prefix, prefixes, result) {    if (prefix !== '-ms-') return super.insert(decl, prefix, prefixes)    let values = utils.parse(decl)    let [rowStart, rowSpan] = utils.translate(values, 0, 2)    let [columnStart, columnSpan] = utils.translate(values, 1, 3)    ;[      ['grid-row', rowStart],      ['grid-row-span', rowSpan],      ['grid-column', columnStart],      ['grid-column-span', columnSpan]    ].forEach(([prop, value]) => {      utils.insertDecl(decl, prop, value)    })    utils.warnTemplateSelectorNotFound(decl, result)    utils.warnIfGridRowColumnExists(decl, result)    return undefined  }}GridArea.names = ['grid-area']module.exports = GridArea
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