3 examples of 'document getelementbyclass' in JavaScript

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292getElementsByClassName(className) {
293 if (typeof className !== 'string') return [];
294
295 return this.$_tree.getByClassName(className);
296}
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355setElementClassNames(elementClassNames) {
356 // apply to the bg
357 var iframe = goog.dom.getElementsByTagNameAndClass(
358 'iframe', null, this.element)[0];
359 // get the iframe document
360 var iframeDoc = goog.dom.getFrameContentDocument(iframe);
361 // apply css classes of the element
362 // apply it on <html> tag instead of body,
363 // because body represents
364 // the '.silex-element-content' element of Silex text elements
365 // so it has these classes: 'silex-element-content normal'
366 var htmlElement = iframeDoc.getElementsByTagName('html')[0];
367 htmlElement.className = elementClassNames;
368 // body represents the '.silex-element-content' element of Silex text elements
369 // so it has these classes: 'silex-element-content normal'
370 iframeDoc.body.className = 'silex-element-content normal';
371 // keep the size of the text field
372 htmlElement.style.left = '10px';
373 htmlElement.style.right = '20px';
374 htmlElement.style.height = '100%';
375 htmlElement.style.overflowX = 'hidden';
376 htmlElement.style.overflowY = 'scroll';
377 iframeDoc.body.style.height = 'auto';
378 iframeDoc.body.style.position = 'initial';
379 // keep the pointer events which are disabled on element content (see front-end.css)
380 iframeDoc.body.style.pointerEvents = 'auto';
381}
580Video.prototype.getElementByClass = function getElementByClass(className) {
581 return this.element.getElementsByClassName(className)[0];
582};

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