10 examples of 'check if string is file image javascript' in JavaScript

91
function isImageFile(file) {
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  for (var i in ImageFileExtentsions) {
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    var key = ImageFileExtentsions[i]
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    if (file.toLowerCase().endsWith('.' + key)) {
95
      return true;
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    }
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  }
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  return false;
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}

26
export function isImage(file: File) {
27
  if (!(file instanceof window.File)) return false;
28
  const type = `|${file.type.slice(file.type.lastIndexOf('/') + 1)}|`;
29
  return '|jpg|png|jpeg|bmp|gif|'.indexOf(type) !== -1;
30
}

58
function isImageFile(path) {
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    return /\.(jpe?g|gif|png)$/.test(path);
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}

33
static getIsImageFile(fileExtension: string): boolean {
34
    return ['jpg', 'jpeg', 'png', 'webp', 'gif'].indexOf(fileExtension) > -1;
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}

4
export function isImage(image) {
5
  return Boolean(getImageTypeOrNull(image));
6
}

17
export function isImageFile(item: File): boolean {
18
  if (item.type) {
19
    return item.type.indexOf('image') === 0;
20
  }
21
22
  if (item.path) {
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    return isImageUrl(item.path);
24
  }
25
26
  if (item.url) {
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    return isImageUrl(item.url);
28
  }
29
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  return false;
31
}

69
function isValidImage (filename) {
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  return (/\.(gif|jpg|jpeg|png)$/i).test(filename)
71
}

89
function isImg(relativePath) {
90
  return checkSuffix(relativePath, imgSuffixs);
91
}

344
function validateImageUrl(imagePath) {
345
    var filePath = /^(https?|ftp):\/\/(((([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:)*@)?(((\d|[1-9]\d|1\d\d|2[0-4]\d|25[0-5])\.(\d|[1-9]\d|1\d\d|2[0-4]\d|25[0-5])\.(\d|[1-9]\d|1\d\d|2[0-4]\d|25[0-5])\.(\d|[1-9]\d|1\d\d|2[0-4]\d|25[0-5]))|((([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])*([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])))\.)+(([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])*([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])))\.?)(:\d*)?)(\/((([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:|@)+(\/(([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:|@)*)*)?)?(\?((([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:|@)|[\uE000-\uF8FF]|\/|\?)*)?(\#((([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:|@)|\/|\?)*)?$/i;
346
    if(!filePath.exec(imagePath)) return false;
347
348
    var fileExt = /(\.jpg|\.jpeg|\.gif|\.png)$/i;
349
    if(!fileExt.exec(imagePath)) return false;
350
351
    return true;
352
}

71
export function isImageAsset(asset, locale) {
72
  return (
73
    asset.fields.file[locale] &&
74
    /^image\//.test(asset.fields.file[locale].contentType)
75
  )
76
}