Mysql like query result using lodash from json array

Question

I have JSON look like this

[{\"id\":\"7\",\"name\":\"hello\",\"username\":\"hell7s692\",\"password\":\"dAggzyFMnBXq3RjoTWoJ3ndBkGhyU6njT2ZPlNfXVV8+XU3vvrTaULUA         


        

Answer 1

Instead of using _.matches(), you can use _.startsWith() to match the first n-characters you need to. For example, if you want to match name starting with 'he', you can do something like this:

var result = [{
  name: 'hello'
}, {
  name: 'healthy'
}];

_.filter(result, function(obj) {
  return _.startsWith(obj.name, 'he');
});

This should match both.

You can also use regular expression to match them:

_.filter(result, function(obj) {
    return obj.name.search(/he/i) === 0;  // i = ignore case
});

'i' in '/he/i' means ignore case, so this will match name = 'Hello' also.

search() returns the 1st position of the pattern it found, it returns -1 if not found. So if you need to find a pattern anywhere in a string instead of starting from the beginning, you can check for search() >= 0. So

_.filter(result, function(obj) {
    return obj.name.search(/he/i) >= 0;
});

will match 'hello', 'shell', 'healthy', 'the', and etc