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It will only resize existing ones.\n\t\t *\n\t\t * @param {HTMLElement} element A `<pre>` element with line numbers.\n\t\t * @returns {void}\n\t\t */\n\t\tresize: function (element) {\n\t\t\tresizeElements([element]);\n\t\t},\n\n\t\t/**\n\t\t * Whether the plugin can assume that the units font sizes and margins are not depended on the size of\n\t\t * the current viewport.\n\t\t *\n\t\t * Setting this to `true` will allow the plugin to do certain optimizations for better performance.\n\t\t *\n\t\t * Set this to `false` if you use any of the following CSS units: `vh`, `vw`, `vmin`, `vmax`.\n\t\t *\n\t\t * @type {boolean}\n\t\t */\n\t\tassumeViewportIndependence: true\n\t};\n\n\t/**\n\t * Resizes the given elements.\n\t *\n\t * @param {HTMLElement[]} elements\n\t */\n\tfunction resizeElements(elements) {\n\t\telements = elements.filter(function (e) {\n\t\t\tvar codeStyles = getStyles(e);\n\t\t\tvar whiteSpace = codeStyles['white-space'];\n\t\t\treturn whiteSpace === 'pre-wrap' || whiteSpace === 'pre-line';\n\t\t});\n\n\t\tif (elements.length == 0) {\n\t\t\treturn;\n\t\t}\n\n\t\tvar infos = elements.map(function (element) {\n\t\t\tvar codeElement = element.querySelector('code');\n\t\t\tvar lineNumbersWrapper = element.querySelector('.line-numbers-rows');\n\t\t\tif (!codeElement || !lineNumbersWrapper) {\n\t\t\t\treturn undefined;\n\t\t\t}\n\n\t\t\t/** @type {HTMLElement} */\n\t\t\tvar lineNumberSizer = element.querySelector('.line-numbers-sizer');\n\t\t\tvar codeLines = codeElement.textContent.split(NEW_LINE_EXP);\n\n\t\t\tif (!lineNumberSizer) {\n\t\t\t\tlineNumberSizer = document.createElement('span');\n\t\t\t\tlineNumberSizer.className = 'line-numbers-sizer';\n\n\t\t\t\tcodeElement.appendChild(lineNumberSizer);\n\t\t\t}\n\n\t\t\tlineNumberSizer.innerHTML = '0';\n\t\t\tlineNumberSizer.style.display = 'block';\n\n\t\t\tvar oneLinerHeight = lineNumberSizer.getBoundingClientRect().height;\n\t\t\tlineNumberSizer.innerHTML = '';\n\n\t\t\treturn {\n\t\t\t\telement: element,\n\t\t\t\tlines: codeLines,\n\t\t\t\tlineHeights: [],\n\t\t\t\toneLinerHeight: oneLinerHeight,\n\t\t\t\tsizer: lineNumberSizer,\n\t\t\t};\n\t\t}).filter(Boolean);\n\n\t\tinfos.forEach(function (info) {\n\t\t\tvar lineNumberSizer = info.sizer;\n\t\t\tvar lines = info.lines;\n\t\t\tvar lineHeights = info.lineHeights;\n\t\t\tvar oneLinerHeight = info.oneLinerHeight;\n\n\t\t\tlineHeights[lines.length - 1] = undefined;\n\t\t\tlines.forEach(function (line, index) {\n\t\t\t\tif (line && line.length > 1) {\n\t\t\t\t\tvar e = lineNumberSizer.appendChild(document.createElement('span'));\n\t\t\t\t\te.style.display = 'block';\n\t\t\t\t\te.textContent = line;\n\t\t\t\t} else {\n\t\t\t\t\tlineHeights[index] = oneLinerHeight;\n\t\t\t\t}\n\t\t\t});\n\t\t});\n\n\t\tinfos.forEach(function (info) {\n\t\t\tvar lineNumberSizer = info.sizer;\n\t\t\tvar lineHeights = info.lineHeights;\n\n\t\t\tvar childIndex = 0;\n\t\t\tfor (var i = 0; i < lineHeights.length; i++) {\n\t\t\t\tif (lineHeights[i] === undefined) {\n\t\t\t\t\tlineHeights[i] = lineNumberSizer.children[childIndex++].getBoundingClientRect().height;\n\t\t\t\t}\n\t\t\t}\n\t\t});\n\n\t\tinfos.forEach(function (info) {\n\t\t\tvar lineNumberSizer = info.sizer;\n\t\t\tvar wrapper = info.element.querySelector('.line-numbers-rows');\n\n\t\t\tlineNumberSizer.style.display = 'none';\n\t\t\tlineNumberSizer.innerHTML = '';\n\n\t\t\tinfo.lineHeights.forEach(function (height, lineNumber) {\n\t\t\t\twrapper.children[lineNumber].style.height = height + 'px';\n\t\t\t});\n\t\t});\n\t}\n\n\t/**\n\t * Returns style declarations for the element\n\t *\n\t * @param {Element} element\n\t */\n\tfunction getStyles(element) {\n\t\tif (!element) {\n\t\t\treturn null;\n\t\t}\n\n\t\treturn window.getComputedStyle ? getComputedStyle(element) : (element.currentStyle || null);\n\t}\n\n\tvar lastWidth = undefined;\n\twindow.addEventListener('resize', function () {\n\t\tif (config.assumeViewportIndependence && lastWidth === window.innerWidth) {\n\t\t\treturn;\n\t\t}\n\t\tlastWidth = window.innerWidth;\n\n\t\tresizeElements(Array.prototype.slice.call(document.querySelectorAll('pre.' + PLUGIN_NAME)));\n\t});\n\n\tPrism.hooks.add('complete', function (env) {\n\t\tif (!env.code) {\n\t\t\treturn;\n\t\t}\n\n\t\tvar code = /** @type {Element} */ (env.element);\n\t\tvar pre = /** @type {HTMLElement} */ (code.parentNode);\n\n\t\t// works only for <code> wrapped inside <pre> (not inline)\n\t\tif (!pre || !/pre/i.test(pre.nodeName)) {\n\t\t\treturn;\n\t\t}\n\n\t\t// Abort if line numbers already exists\n\t\tif (code.querySelector('.line-numbers-rows')) {\n\t\t\treturn;\n\t\t}\n\n\t\t// only add line numbers if <code> or one of its ancestors has the `line-numbers` class\n\t\tif (!Prism.util.isActive(code, PLUGIN_NAME)) {\n\t\t\treturn;\n\t\t}\n\n\t\t// Remove the class 'line-numbers' from the <code>\n\t\tcode.classList.remove(PLUGIN_NAME);\n\t\t// Add the class 'line-numbers' to the <pre>\n\t\tpre.classList.add(PLUGIN_NAME);\n\n\t\tvar match = env.code.match(NEW_LINE_EXP);\n\t\tvar linesNum = match ? 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