如果字符串包含空格 javascript，则不匹配

Question

I am trying to figure out the regex pattern for not matching strings if the string contains whitespace. For example

"The " should not match "The"

"House " should not match "House"

Answer 1

You can check whether the search string is inside any of the books in your list.

var matches = function(search, books) {
  return books.filter(function(book) {
    return book.indexOf(search) !== -1
  })
}

I do not think you need regex in this case.

See that 'house ' is not inside 'house' but is inside 'house of'

Answer 2

You can use startsWith() that fits well to your requirement, use the polyfill for older/unsupported browsers.

 var strings = ["HouseArrest", "House arrest", "HouseOfCards", "House of cards"]; function search(val){ var res = strings.filter(i=>i.startsWith(val)); console.clear(); console.log(JSON.stringify(res)); }

 <input onkeyup="search(this.value)" type="text"/>