Chapter 04 · applied · runs in browser
Working with strings
Check text length and content with readable, predictable expressions.
01String size and UnicodeMeasure text containing diacritics and an emoji in Unicode characters.Try CEL02Prefixes, suffixes, and contained textCheck three concrete properties of one string.Try CEL03Pattern checks with regular expressionsValidate a fixed code format and learn when a simpler string method is clearer.Try CEL04Readable rules for textCombine several simple checks into one understandable rule.Try CEL